Jamaican sprinter Michael Frater has welcomed Dwain Chambers' return.
The Olympic 4x100m relay gold medallist, whose team mates include Usain Bolt, said: "I definitely don't have a problem with Dwain coming back and competing at the Olympics.
"Dwain realised that he had made a mistake in taking a banned substance. He was one of the few people who came out and said publicly that he had done drugs and he had made a mistake and he has now been clean for a while."
Sprinter Dwain Chambers cleared to compete in this year's London Olympics after a court overturned the BOA's lifetime ban on drug cheats.
Drugs cheats Dwain Chambers and David Millar will have lifetime bans lifted today, allowing their selection for the London 2012 Olympics.
Dwain Chambers could soon be cleared to compete at London 2012 with his ban for doping reportedly set to be overturned.