Usain Bolt confirmed suffering a grade one hamstring tear at Jamaicas Olympic trials on Friday but the star sprinter expects to secure his place at the Rio Games by proving his fitness at the London Anniversary Games later this month.Bolt withdrew from the final of the mens 100m after Friday nights semi-finals as Yohan Blake went on to win the trial in 9.95 seconds.After feeling discomfort in my hamstring after the first round last night (Thursday) and then again in the semi-final tonight (Friday) I was examined by the Chief Doctor of the National Championships and diagnosed with a Grade 1 tear, Bolt said on his official Facebook account.I have submitted a medical exemption to be excused from the 100m final and the remainder of the National Championships.I will seek treatment immediately and hope to show fitness at the London Anniversary Games on July 22 to earn selection for the Olympic Games in Rio, the two-time Olympic 100 metre and 200 metre gold medallist added.Bolt had clocked 10.04 seconds to win semi-final one after a poor start.His withdrawal does not mean he would miss the Rio Olympics, where Bolt is expected to defend his 100m and 200m titles.Unlike the United States, where the first three finishers in the trials win Olympic berths, Jamaicas selection policy allows medical exemptions.His coach Glen Mills told Reuters that efforts were made since Thursday night to get Bolt ready for Fridays semi-final and final.The therapist did a good job working on him but in a couple of hours to come and run, he felt it again, Mills said.Hamstring injuries are always serious.The fact that he couldnt run, showed it is serious, but well see what happens between now and (the Olympics), Mills said at trackside after another of his charge, Blake, won the trial.Bolt also posted a photo of receiving treatment on his instagram page. Jaren Jackson Jr. Grizzlies Jersey . -- Catcher Brett Hayes has agreed to a $630,000, one-year contract with the Kansas City Royals, avoiding salary arbitration. Zach Randolph Jersey . That gave fans outside Joe Louis Arena another chance to ask for autographs from the 19-year-old whose stardom in the NHL has arrived earlier than most expected. http://www.grizzliesbasketballpro.info/Lorenzen-Wright-Grizzlies-Jersey/ . Terms of the deal were not immediately available. The 26-year-old finished last season with Clevelands Triple-A affiliate in Columbus after signing with the Indians in August. Kyle Anderson Jersey . The nimble-footed quarterback got his wish, dashing through the snow and a weary defence all the way into the NCAA record book. Marc Gasol Jersey . William Carrier opened the scoring for Cape Breton (6-4-2), but Andrew Ryan tied the game and Brent Andrews put the Mooseheads (8-6-0) in front for good with a short-handed goal at 13:49 of the second period. On Sunday, Australian cycling great Anna Meares decided to end her stellar career, highlighted by two gold medals from four Olympic campaigns and 11 world championship titles.Her decision came after she won bronze in the keirin at the Rio Games, her sixth Olympic medal making her the most decorated Australlian cyclist in Games history.ddddddddddddHer retirement didnt go unnoticed, with countless athletes and fans taking to social media to congratulate Meares on her achievements. ' ' '