Switzerlands Stan Wawrinka became the latest top-tier player to pull out of the Rio Olympics.The world No. 4 cited a back injury that he sustained last week at the Rogers Cup, where he reached the semifinals.I am very sad because after Beijing and London I would have liked to experience my third Olympic Games in Brazil, Wawrinka said in a statement to the Swiss Tennis Federation on Tuesday. Unfortunately that will now not be possible.In 2008, Wawrinka won doubles gold with partner Roger Federer, beating the Swedish team of?Simon Aspelin and Thomas Johansson in the final. But Wawrinkas singles ascent did not start until a few years later, when in 2014 he took down Novak Djokovic and Rafael Nadal en route to his first Grand Slam title at the Australian Open.A year later, Wawrinka triumphed at Roland Garros, becoming the only current player outside the famed Big Four (Federer, Djokovic, Nadal and?Andy Murray) to win multiple majors.Wawrinka, 31, joins four other top 10 players, including Federer, as Rio withdrawals. Wholesale Air Jordan Shoes . -- Catcher Brett Hayes has agreed to a $630,000, one-year contract with the Kansas City Royals, avoiding salary arbitration. Real Jordans For Cheap Prices .C. -- Charlotte Bobcats coach Steve Clifford said after all of these years in the NBA hes still amazed at some of the things LeBron James does. http://www.cheapauthenticairjordanforsale.com/ . The Cleveland Indians, Tampa Bay Rays, and Texas Rangers all won on Sunday meaning the Rangers will host the Rays in a play-in game on Monday. Authentic Jordans For Cheap . Scott Kazmir allowed four hits in seven shutout innings, Michael Brantley hit a two-run homer in a three-run first inning and the Indians maintained their hold on an AL wild-card spot with a 4-1 win over the Houston Astros on Saturday night. Cheap Authentic Jordans Website . Pirlo limped out of Sundays 1-0 win over Udinese after just 13 minutes. Juventus says Pirlo underwent tests on Monday which revealed he has "a second-degree lesion to the collateral medial ligament in his right knee. NASSAU, Bahamas -- Tiger Woods will be playing alone Friday in the Hero World Challenge.Justin Rose, the only player with a higher score in the opening round at Albany, withdrew Friday because of a nagging back issue. Rose did not play the pro-am Wednesday and then opened with a 74 in the first round. Rose, the Olympic gold medalist, has not played since the Ryder Cup, wanting to rest hiss back.dddddddddddd.Woods has the option of playing with a marker, a player not in the competition. That occasionally happens at the majors. The PGA Tour said he would be playing as a solo, meaning the round likely would take him no more than about three hours. ' ' '