British Olympic gold-medalist Peter Kennaugh could miss the Tour de France in July after breaking his collarbone in the Tour of California on Tuesday. The Team Sky rider, who won gold as part of Britain's team pursuit squad on the track at London 2012 and in contention for a place in the squad for Rio this year, crashed near the end of the third stage. Kennaugh was expected to be a key man in Team Sky's Tour de France campaign in support of defending champion Chris Froome at the July 2-24 stage race. More...