NFL Nation reporters pick the top training camp position battle for every team.AFC East | AFC North| AFC South | AFC West NFC East | NFC North | NFC South | NFC WestAFC EASTBuffalo BillsRunning backBehind LeSean McCoy, this has been a position to watch since the spring. The downward spiral of Karlos Williams -- showing up to minicamp overweight and then getting slapped with a four-game NFL suspension -- as well as the arrest of rookie Jonathan Williams added more intrigue to the battle and likely played a role in the Bills?signing veteran Reggie Bush this week. Bush figures to slide into the No. 2 role, with Mike Gillislee likely to retain the No. 3 role as Karlos Williams sits out the first quarter of the season. -- Mike RodakMiami DolphinsRunning backThe Dolphins have a classic training camp battle involving a longtime veteran,?Arian Foster, against an unproven upstart,?Jay Ajayi. Foster, a former Pro Bowler coming off a torn?Achilles tendon suffered in October, has ground to make up. Ajayi began camp with?the first team but recently suffered a bone bruise on his knee that caused him to miss practice time. That opened the door for Foster to get more reps with the starters. Foster already is showing flashes, especially catching the ball out of the backfield. This competition wont be determined until late in the preseason. -- James WalkerNew England PatriotsInterior offensive lineThe Patriots could have three different starters along the offensive line to open the year, if rookie Joe Thuney (left guard) and trade acquisition Jonathan Cooper (right guard) win jobs and David Andrews successfully challenges incumbent Bryan Stork at center. Cooper, however, was carted off the practice field Saturday and?hasnt practiced since. Four-year veteran Josh Kline and sixth-round pick?Ted Karras are working at right guard for now, while 2015 starters Shaq Mason and Tre Jackson?will be in the mix once they are?cleared to practice. The interior spots are?arguably the positions?on the roster where there is the most wide-open competition. -- Mike ReissNew York JetsCornerbackThe Jets need a replacement for Antonio Cromartie. The leading candidate is nickelback Buster Skrine, who played in the slot last season. Marcus Williams and Dee Milliner will push Skrine, but Skrine will likely prevail and become an every-down player. -- Rich CiminiAFC NORTHBaltimore RavensLeft guardThe search for?Kelechi Osemeles replacement is the most wide-open competition on the team. John Urschel is running with the first team, but the Ravens feel he is better suited at center. Ryan Jensen plays with a mean streak, but he has to become more consistent. Rookie Alex Lewis will figure into the competition, even though he could be the future starting right tackle. This is the second major change to the offensive line this year. Ronnie Stanley, the No. 6 pick, will start at left tackle. -- Jamison HensleyCincinnati BengalsDefensive endNow that the Bengals training camp has begun, we can safely say there is no competition battle quite like the one at backup defensive end, where Will Clarke and Margus Hunt are trying to show their steady improvement. Hunt, in particular, is in the middle of an intense camp, one that could determine whether the former second-round pick is in Cincinnati a month from now. Entering the final year of his rookie deal, the pass-rusher hasnt translated to the NFL as quickly as many had hoped he would. -- Coley HarveyCleveland BrownsRight tackleUsually the easy answer with the Browns is quarterback, but Robert Griffin III has taken every first-team snap since the spring, which indicates how competitive that competition has been. The Browns do need to find a replacement for right tackle Mitchell Schwartz, who left via free agency. Alvin Bailey enters camp as the starter, but there will be competition with Austin Pasztor and Michael Bowie. Rookie third-round pick?Shon Coleman also will get a look; he missed the offseason work to protect the knee he had scoped after his college season at Auburn. -- Pat McManamonPittsburgh SteelersLeft tackleThis is easily the Steelers most fascinating contest, as Alejandro Villanueva,?a behemoth, 6-foot-9 former Army ranger?with a?raw skill set but obvious potential, battles veteran Ryan Harris for the right to start. The Steelers will let this one play out all camp. Villanueva is believed to have the inside track if he keeps progressing. Harris is the more stable option, but Villanueva has bigger upside.?-- Jeremy FowlerAFC SOUTHHouston TexansCenterThe Texans let last years center, Ben Jones, leave for?the Titans in free agency. They added veteran Tony Bergstrom, who has mostly been a backup in his career, in free agency and drafted Nick Martin in the second round. It could take the rookie some time to get up to speed. Although ultimately Martin should be the teams starting center, Bergstrom could open?the season as the starter. -- Tania GanguliIndianapolis ColtsRight guardHugh Thornton has started 32 of 37 games in his career, but second-year player Denzelle Good, who played right tackle as a rookie, is pushing Thornton?so much that Good is starting to get more reps with the first team. Another player in the mix for the job is Jonotthan Harrison, who mainly played center his first two seasons. Offensive coordinator Rob Chudzinski described the competition for the job as being wide-open. -- Mike WellsJacksonville JaguarsLeft tackleIncumbent Luke Joeckel is fighting with Kelvin Beachum to keep his starting job. Joeckel hasnt been the kind of dominant player the Jaguars hoped he would become when they took him second overall in the 2013 draft, and they declined to pick up his fifth-year option. There are those in the building who?believe former Steeler Beachum is a top-10 tackle in the NFL, so he is probably the favorite. The loser of the competition will likely be the starting left guard. -- Mike DiRoccoTennessee TitansLeft guardQuinton Spain finished last season as the starter, but that was sort of by default. He will have to hold off rookie Sebastian Tretola, former starting center Brian Schwenke and 2015 third-rounder Jeremiah Poutasi. The Titans are desperate for better line play to protect quarterback?Marcus Mariota and make room for running backs?DeMarco Murray and Derrick Henry. -- Paul KuharskyAFC WESTDenver BroncosQuarterbackThe Broncos have the marquee battle at quarterback with Mark Sanchez, Trevor Siemian?and?rookie first-round pick?Paxton Lynch splitting the practice reps evenly overall. Sanchez, however, currently has taken the most reps with the starting offense. Siemian and Lynch have each had their practice moments in camps early going, but day-to-day and play-to-play, Sanchez has looked the most consistent and most comfortable. Also, he has shown a little more willingness to step forward as a leader than the?younger signal-callers, so much so that former Broncos running back Terrell Davis said after watching practice this week that its clear Sanchez will be the guy in the regular season. -- Jeff LegwoldKansas City ChiefsLeft guardRookie Parker Ehinger has been working as the starter, but the Chiefs are also giving some snaps to Zach Fulton. The choice is between the potential of Ehinger, a fourth-round draft pick, and the experience of Fulton, who has started 22 games the past two seasons. -- Adam TeicherOakland RaidersRight tackleMenelik Watson and Austin Howard have both been seeing time with the first unit in the early days of camp. Watson, a former second-round draft pick coming back from a torn Achilles tendon suffered last preseason, is getting?the majority of reps?after Howard, who is returning from a knee injury suffered late last season, saw the brunt of them?in the first practice. Menelik? Yeah, were happy hes healthy, coach Jack Del Rio said. [Menelik] is doing a good job, and yeah, I would agree with you. I think hes done a nice job to start camp. -- Paul GutierrezSan Diego ChargersBackup quarterbackPhilip Rivers has not missed a game in a decade, but theres a battle between incumbent Kellen Clemens and waiver-wire pickup Zach Mettenberger?for San Diegos No. 2 QB job. Clemens, 33, is a?veteran?who can come in and win a game in the clutch, and he has a good relationship with Rivers. Mettenberger, 25, possesses a strong arm and was drafted by Chargers offensive coordinator Ken Whisenhunt while he served as head coach of the Titans. -- Eric D. WilliamsNFC EASTDallas CowboysCornerbackAlthough the Cowboys have questions to answer at defensive end, the most compelling case would be between Brandon Carr and Morris Claiborne at right cornerback. Carr accepted a pay cut in the offseason, and Claiborne returned on a one-year deal. Both need to find their form if they want bigger paydays in 2017. Carr has started every game he has played in his eight years in the NFL. Claiborne has yet to play a full season, but theres optimism in the organization that he has found his stride. -- Todd ArcherNew York GiantsMiddle linebackerIts a vital position that dictates the leader of the defense. The Giants have Jasper Brinkley, Keenan Robinson, Kelvin Sheppard and rookie B.J. Goodson in the mix. Brinkley is the favorite early in training camp, in part because he knows the defense best and finished last season?as the Giants starter at the position. But this one is completely up for grabs. -- Jordan RaananPhiladelphia EaglesCornerbackThe Eagles unloaded last years marquee addition, Byron Maxwell, and added lower-level free agents Leodis McKelvin and Ron Brooks,?who played for coordinator Jim Schwartz in Buffalo. They appear to be in the lead for both cornerback spots for now, but Nolan Carroll, Eric Rowe and rookie Jalen Mills?will?all be in the mix during the preseason. -- Phil SheridanWashington RedskinsInside linebackerThe Redskins have a battle at left guard as well as defensive end, but the interesting one to watch is at linebacker, where Perry Riley Jr. and Mason Foster are fighting for a spot next to Will Compton. Riley just returned from a broken foot, but if he doesnt win the job, it could get more intriguing, as he?is not a big special-teams guy and would be an expensive backup at $5 million. -- John KeimNFC NORTHChicago BearsStrong safetyThe Bears used a fourth-round pick on hard-hitting Miami safety Deon Bush, who on paper complements the style of rangy free safety Adrian Amos. Bush will have to earn the starting job, though. Standing in Bushs way is Harold Jones-Quartey,?a physical, second-year safety whose aggressive style of play jumps out at practice. Jones-Quartey has the edge in experience; as an undrafted rookie out of Findlay last year, Jones-Quartey started four games, intercepted one pass and forced a?fumble. -- Jeff DickersonDetroit LionsStrong safetySome will look at receiver and others the offensive line, but strong safety is the most wide-open position in camp, with potentially five players vying for roles. The Lions signed Rafael Bush (the leader entering camp) and Tavon Wilson in free agency, drafted Miles Killebrew in the fourth round and have Isaiah Johnson and Don Carey on the roster. An early pick:?Bush wins the job but is pushed hard by Killebrew, who shows he can be the teams strong safety of the future. Johnson ends up flashing talent?in the competition. -- Michael RothsteinGreen Bay PackersWide receiverNot only is it nearly impossible to tell how many receivers the Packers are going to keep, but also, at this point it isnt clear who the No. 3 will be behind Jordy Nelson (when he returns) and Randall Cobb. Davante Adams, Jeff Janis, Jared Abbrederis and even rookie fifth-round pick Trevor Davis have made their cases while at the same time showing their limitations. Ty Montgomery?could get involved when he comes off the PUP list. Even undrafted rookie Geronimo Allison and practice-squad member Ed Williams have made plays. We have a lot of guys who are going to be competing for, really, three through however many spots they keep, quarterback Aaron Rodgers said. -- Rob DemovskyMinnesota VikingsCenterJohn Sullivan is trying to regain his starting job after he missed all of 2015 because of two back surgeries. The 31-year-old has?been one of the better centers in the league, but Joe Berger had a strong year in Sullivans absence. They are?trading first-team snaps early in training camp. Given how well Berger played last season, it could be tougher than many mightve thought for Sullivan to get the job back. -- Ben GoesslingNFC SOUTHAtlanta FalconsInside linebackerThree-time leading tackler?Paul Worrilow?is trying to hold off rookie Deion Jones. Worrilow has the knowledge of the defense at his advantage, but Jones blazing speed makes him the ideal coverage linebacker. Linebackers coach Jeff Ulbrich has even tinkered with playing Worrilow at weakside linebacker while leaving Jones in the middle during training camp. It wouldnt be a surprise to see Worrilow on the field in the base defense and Jones on the field in the nickel. -- Vaughn McClureCarolina PanthersCornerbackWho will replace cornerback Josh Norman? The Panthers drafted James Bradberry in the second round, Daryl Worley in the third and Zack Sanchez in the fifth, with the hope that at least one could replace Norman. With the other starting corner, Bene Benwikere, on PUP rehabbing a fractured ankle injury from last season, a rookie could fill both corner spots, and there?could be?three if Sanchez wins the nickel spot. But replacing Norman is the top priority because Benwikere is expected back. Bradberry seems to have the upper hand. Hes even wearing Normans No. 24. However, coach Ron Rivera says none of the three has separated himself from the others yet. -- David NewtonNew Orleans SaintsDefensive endThe Saints have three young pass-rushers competing for their open defensive end position across from Pro Bowler Cameron Jordan. Chances are?Obum Gwacham, Kasim Edebali and Davis Tull will wind up rotating in that spot. The Saints desperately need at least one of them to emerge as a QB disruptor at a position that could be considered their biggest question after Hauoli Kikaha went down with a summer knee injury. Gwacham got the most reps with the 1s early in camp, but Edebali has also gotten turns -- and all three have flashed a couple times in team drills. The ability to hold up against the run will be key for all of them and could give Edebali an edge. -- Mike TriplettTampa Bay BuccaneersCornerbackBucs coach Dirk Koetter announced Monday that first-round pick Vernon Hargreaves would start rotating in with the first-team defense. Hargreaves has spent a great deal of time working in at nickelback while lining up with the second-team defense on the outside. Will he stay at nickel and take reps from Jude Adjei-Barimah? Or will he unseat Alterraun Verner or Brent Grimes on the outside? Its highly unlikely that Hargreaves?takes away Grimes spot. Verner has had a stellar?training camp so far and could very well rebound from two disappointing seasons under the previous regime. -- Jenna LaineNFC WESTArizona CardinalsCenterIts a veteran-rookie battle. A.Q. Shipley has held on to the first-team center job all offseason, ever since the Cardinals decided not to re-sign long-time starter Lyle Sendlein. But Arizona drafted Evan Boehm out of Missouri in the fourth round, and Boehm is in line to be?the center of the future. Unless coach Bruce Arians put up an epic smokescreen this week by saying Evans just got to learn and A.Q. has proven he can play, the battle for center will be the best in Arizonas camp this year. -- Josh WeinfussLos Angeles RamsQuarterbackThe Rams would like nothing more than to see rookie Jared Goff take the job and run with it sooner than later. But organized team activities showed that Goff is going to need some time to get up to speed. Case Keenum is there to offer a steady hand until Goff is ready. Depending on how Goff fares in camp, this might be less of a competition and more of a delayed coronation for Goff. -- Nick WagonerSan Francisco 49ersQuarterbackCoach Chip Kelly will promote competition across the board in his first season in San Francisco, but none of those battles will get more scrutiny than the one for quarterback. Blaine Gabbert is the incumbent after he stepped in for an injured Colin Kaepernick last season. Gabbert showed signs of improvement as the season went on, while Kaepernick is looking to rediscover the magic that made him a breakout star just a few years ago. The Niners are splitting the reps evenly, and neither player has stood above the other so far. Expect this one to go well into the preseason. -- Nick WagonerSeattle SeahawksRunning backIf Thomas Rawls were healthy, hed be the heavy favorite to start. But Rawls is still recovering from the ankle injury he suffered in December and is on the PUP list. That has given rookies Alex Collins and Zac Brooks a chance to run with the first team, along with veteran Christine Michael. Third-round pick C.J. Prosise has been sidelined with a hamstring injury. Pete Carroll said he expects Rawls to be ready for the opener, but theres plenty of uncertainty at this spot. -- Sheil Kapadia Nike Air Max Tavas Baratas . -- Yogi Ferrell orchestrates pretty much everything in Indianas offence. Air Max 2 Uptempo Baratas . Brandon Morrow allowed five runs on six hits over three innings. He struck out two, walked one and hit a batter. Edwin Encarnacion had a two-out, bases loaded two-RBI double in the third inning. http://www.tiendasairmaxbaratas.com/zapatillas-air-max-1/max-1-hombre.html . Argentina winger Ezequiel Lavezzi and France midfielder Blaise Matuidi scored, with star striker Zlatan Ibrahimovic setting up both despite having a poor game by his high standards. Forward Eduardo gave Ajaccio the lead in the sixth minute after being set up by right winger Benjamin Andre, and the Corsican side looked comfortable in the first half, with the lively Johan Cavalli causing problems with his probing runs from midfield. Nike Air Max 93 Baratas . Jeff Green scored 13 points and Kris Humphries 12 for the Celtics, who nearly blew an 18-point, second-half lead. Sullingers 20-20 was the first by a Celtics player since Kevin Garnetts first game in Boston in 2007. Garnett was dealt -- along with Paul Pierce -- to Brooklyn during the off-season. Air Max 2020 Baratas . Kiriasis and brakeman Franziska Fritz finished two runs in one minute 55.41 seconds -- a mere 0.01 seconds ahead of Meyers and Lolo Jones, who likely bolstered her Olympic hopes by helping give USA-1 a huge push in the second heat. TROON, Scotland -- The Latest on the British Open (all times local):---7 p.m.Phil Mickelson is heartbroken, even after one of the greatest rounds in major championship history.Lefty shot an 8-under 63 in the opening round of the British Open on Thursday, but hell long remember the lipped-out putt at the 18th hole that cost him a chance at history.Mickelson couldve become the first player to shoot 62 at a major championship. Instead, he joins 25 other players whove managed a 63.Mickelson puts it this way: All those highlights and I feel like crying. Indeed, his 16-foot putt looked like it was right in the cup with a foot to do, only to veer off to the right, catch the edge of the cup, and stay out.The 46-year-old American knows these sorts of chances dont come along very often. At his age, especially, the odds are against Mickelson ever coming that close again. Thats why he describes it as heartbreaking.---6:45 p.m.Chris Wood of England has withdrawn from the British Open because of a recurrence of a neck injury.Wood withdrew after the 12th hole of his first round. He was 3 over par.---6:20 p.m.Phil Mickelson has become the 26th player in major championship history to shoot a 63.And he had reason to be disappointed.His 16-foot birdie putt on the final hole at Royal Troon caught the right lip and rode the edge of the cup without dropping. Mickelson stooped over and grabbed his knees in disbelief.It was the 28th round of 63 in the majors -- Greg Norman and Vijay Singh have done it twice -- and the ninth at the British Open. As a small consolation, Mickelson has the course record at Royal Troon. And he likely will have the lead.---5 p.m.Americans occupy seven of the top eight spots on the leaderboard at Royal Troon, not surprising because they have won the British Open the last six times on this links.One name stands out, however.Phil Mickelson joined Patrick Reed at 5-under par with a long birdie putt on the 10th hole, and he remains bogey-free through 12 holes. Mickelson hasnt won since he captured the claret jug at Muirfield three years ago.Some of the other Americans: Billy Horschel and Tony Finau both finished at 67 and were one shot behind, along with Justin Thomas and Steve Stricker. And not to be overlooked is Zach Johnson, the defending champion, who was 4 under through 10 holes.---3:30 p.m.Steve Stricker was nervous when he teed off at Royal Troon, and it showed. He had to scramble for par on the first hole and took bogey on the next hole. But the 49-year-old American settled down and shot 67, one shot off the lead.So why the nerves? Stricker said maybe it was because its been a while since he played in a major. This is his first major since the PGA Championship last year, and his first British Open since 2012.And it might be his last major. He currently is not eligible for the PGA Championship. Stricker says his agent, brother-in-law Mario Tiziani, has been asking him if Stricker wants to request an exemption. Stricker says he wont do it. He wants to earn it.This is the final event to qualify, and a top 10 might be enough to get in.---2:30 p.m.Three-quarters of golfs Big Four are back in the clubhouse on the first day at Royal Troon -- and Rory McIlroy has fared better than Jordan Spieth and Jason Day.McIlroy, who won the British Open in 2014 and missed the defense of the claret jug last year because of injury, shot a 2-under 69 and was three strokes off early leader Patrick Reed.Spieth bogeyed the last hole after an errant tee shot and had an even-par 71, while top-ranked Day shot 73.The other member of the Big Four is U.S. Open champion Dustin Johnson, who had an afternoon start. He bogeyed the first hole after hitting his driver a long way right.---1 p.m.Americans are impressing once again at a British Open at Royal Troon.The last six Open champions at Troon have come from the United States, and Patrick Reed and Justin Thomas are extending the countrys dominance after shooting the best two early rounds Thursday.Reed eagled the par-4 third, had three birdies in the following four holes, and picked up another shot at the last for a 5-under 66 and the early clubhouse lead.Thomas birdied his first four holes and recovered from a double-bogey 6 at No. 15 by also making a birdie at No. 18 for a 67.Another American, Bubba Watson, was alongside Reed and Thomas atop the leaderboard until he triple-bogeyed No. 8 -- the testing par-3 nicknamed the Postage Stamp -- and then made bogey at Nos. 10 and 11. He is level par through 13 holes.Rory McIlroy is 4 under through 12 holes on his first round at the British Open since lifting the claret jug in 2014. He missed last years tournament because of injury.---12:30 p.m.Louis Oosthuizen has made the first hole-in-one at the British Open.The 2010 champion from South Africa aced thee par-3 No.dddddddddddd 14 from 167 yards, his ball pitching in front of the hole and curling into the cup. He threw his arms up in celebration for what was his second hole-in-one at a major this year, after acing the 16th in the final round of the Masters.---11:45 a.m.With his ball buried and up against the face of a pot bunker, Colin Montgomerie feared the worst after just two shots of his first round at the British Open.Montgomerie was given the honor of hitting the first tee shot at Royal Troon, his home club, in what likely will be his last Open. It was a proud moment for the 53-year-old Scotsman but things quickly turned sour.His second shot landed in him in such trouble that it took two shots to get out of the bunker. An up-and-down later, Monty was walking off with a double-bogey 6 from one of the easiest holes at Troon.No wonder Montgomerie was happy to finish with an even-par 71. He says Im very proud of myself for hanging on in there. It would have been easy to score 78 there, simple.Montgomerie was 3 under for the front nine and 3 over for the back nine.---10:45 a.m.Colin Montgomerie has started what could be his final British Open with an even-par 71 at Royal Troon.The 53-year-old Scotsman was given the honor of hitting the opening tee shot at his home club Thursday, and he was greeted with a packed grandstand on a sunny morning.Montgomerie took a double-bogey at the first hole, but birdied five of the next eight to make the turn with a 3-under 33. He couldnt keep it going, settling for three bogeys on the tougher inward nine to fall off the leaderboard.Bubba Watson, Justin Thomas and Patrick Reed are tied for the lead at 4 under.---10:15 a.m.Its a morning for going low at Royal Troon. Justin Thomas and Patrick Reed are leading the way.The Americans took advantage of the sunny weather Thursday to shoot 5-under 31 on the front nine at the British Open.That puts them a couple of strokes ahead of Kevin Chappell and Jimmy Walker.Given the conditions, its not surprising there are so many red numbers on the board. But the scores figure to rise during the day as the wind picks up. Also, the front nine at Troon is much easier that than the return leg, so its imperative to put up a low score early in the round.Colin Montgomerie found that out. Given the honor of hitting the first stroke of the tournament at his home club, he made the turn with a 3-under 33 even after opening with a double-bogey. Alas, Monty couldnt keep it going. Hes back to even par with two holes to play after three bogeys.---8:30 a.m.Colin Montgomerie has recovered brilliantly from his double bogey to start the British Open.The 53-year-old Scot, playing in perhaps his last Open, caught a buried lie in pot bunker and began with a double bogey. But the scowl soon turned into a smile when Montgomerie ran off five birdies in seven holes to make the turn at 3-under par.Justin Thomas made his British Open debut with birdies on his opening three holes and also was at 3 under.Luke Donald, playing alongside Montgomerie in the first group, was at 2 under.Most encouraging of all: The lead threesome took just under two hours to complete the front nine.---7:25 a.m.The Irish Sea was blue from abundant sunshine. The British Open leaderboard already was filled with red scores.With virtually no wind to start the 145th Open, the gentle outward nine at Royal Troon was living up to its reputation as the time to get birdies. There already were eight birdies in the first 21 holes completed, with Sanghee Lee of South Korea making birdie on the opening two holes.Colin Montgomerie started with a buried lie in a pot bunker on No. 1 and made double bogey. He might want to heed his own advice. Speaking of how easy the front nine is at Royal Troon, the Scot once famously said if a player is not under par at the turn, he might as well keep walking to Prestwick and have lunch in the clubhouse.Prestwick, site of the first 12 British Opens, is adjacent to Royal Troon.---6:45 a.m.The British Open began Thursday with Colin Montgomerie hitting the opening tee shot on the Royal Troon links where his father once was club secretary.Montgomerie, widely considered the best player to have never won a major, qualified at age 53 for what likely will be his last Open. The R&A chose him to be the first player to hit a shot on a gorgeous morning along the Irish Sea.There wasnt an empty seat in the grandstand next to the first tee, where the silver claret jug was on a podium. Five dogs were on the beach.There was no wind, allowing the early starters to take aim at one of the shorter courses on the Open rotation. Montgomerie teed off with Marc Leishman and Luke Donald. ' ' '