Australian BMX cyclist Sam Willoughby is in rehab following a training accident that left the 2012 London Olympics silver medalist with two fractured vertebrae and no movement below his chest. Willoughby was hurt last month in the crash at his home track at the U.S. Olympic Training Center in Chula Vista, California, the rider's family has said in a statement through Cycling Australia. ''He is keeping a positive attitude and working hard towards his goal of walking down the aisle with his fiancee,'' Willoughby's friend, Tyler Brown, who runs the public track at the Chula Vista facility, said this week. More...