US sprinter Tyson Gay, hoping to put seasons hampered by injury behind him, says he’s focusing his 2012 Olympic season efforts on the 100 metres. On a day when Gay held an open workout attended by several media outlets, he told ESPN.com that he doesn’t think his post-injury training allows him to attempt a sprint double. “I’ve had some minor setbacks with nagging injuries,” Gay told ESPN.com. “I’ve been taking it slower, and I don’t have the same quality I wanted to do the double.” Gay’s 2011 season ended in July when he had arthroscopic surgery to repair a torn labrum muscle in his hip.