Athletics-Olympic champion Warner out of decathlon after injury

Canada's Olympic champion David Warner sustained an injury running the 400 metres event in the decathlon at the World Championships on Saturday, ending his bid for a first world title.

Warner was leading the competition when he pulled up with what appeared to be a hamstring injury and fell to the track. American Ayden Owens-Delerme clocked a personal best of 45.07 to take the overall lead.