Moynihan says the BOA will fight any legal challenge by Chambers

British Olympic Association (BOA) chairman Lord Moynihan says he will do everything in his power to make sure Dwain Chambers does not run in Beijing.

The BOA banned the British sprinter from the Olympics for life after he tested positive for THG in 2003.

The 29-year-old is considering a legal challenge in the High Court in order to make the British Olympic team.

But Moynihan said: "There will be no room for cheats in the British team as long as I am involved with the BOA."

Earlier this month, former World Anti-Doping Agency (Wada) boss Dick Pound told BBC Sport that he thought the BOA by-law would be vulnerable to a legal challenge.