Chambers 'preparing' for Olympics

Sprinter Dwain Chambers says he "must be prepared" to run in the London Olympics should "the door of opportunity open", after claiming a fifth UK indoor 60m title in Sheffield.

The British Olympic Association is set to argue before the Court of Arbitration for Sport on 12 March that its own bylaw, which bans convicted drugs cheats from competing in the Olympic Games, does not violate the World Anti-Doping Association code.

The 33-year-old is currently barred under that bylaw, after being found guilty of doping in 2003, but Chambers argues that he is in the same boat as all the other athletes who have yet to book their place in Team GB for the Games in July and August.