David Millar, who had his lifetime Olympic ban lifted in April, has made himself available for selection for London 2012 and is likely to take up a key role in Great Britain’s squad for the road race on July 28.

Millar is free to compete at the Games after the British Olympic Association’s lifetime ban for drugs cheats was declared unlawful by the Court of Arbitration for Sport.

The two-time world time trial silver medallist had previously said he did not want to go to Olympics as a “black sheep” but the 35-year-old has now declared himself available for Team GB.

“I’m available,” told The Times. “I spent a lot of time thinking about it, but I’ve concluded that if I can be of benefit to the team, I would be happy to help.

“The most rational thing is to leave it to the selectors to decide. If they think that including me might be in any way detrimental, even if, physically, I could be one of the strongest riders, I will respect any decision they make. But I think I can genuinely help in the road race, and that’s helping Mark [Cavendish].

“I have spent time fighting the idea of lifetime bans for a first offence and it gets confusing if I don’t make myself available.”

Millar captained the Great Britain team that helped Mark Cavendish to victory at last year’s World Road Race Championships and Cavendish has been vocal in his desire for Millar to be part of the Olympic squad, which will be provisionally announced on June 13.

And it is now likely Millar will line-up alongside Cavendish after the Manx Missile told RoadCyclingUK he will have input into the riders selected for the race.

“I will [have input],” said Cavendish. “We had an amazing group of riders in Copenhagen last year so it will mainly be comprised of those guys.”

The Olympic Games is limited to five-man teams, however, while seven riders – Millar, Jeremy Hunt, Bradley Wiggins, Geraint Thomas, Ian Stannard, Steve Cummings – helped Cavendish earn the rainbow jersey.

Wiggins is a shoo-in for the Olympic team and will also ride the time trial, while Thomas will focus his efforts on the track.  Millar must first prove his form and will start the Criterium du Dauphine on Sunday, the Garmin-Barracuda rider’s first major race since breaking his collarbone in March.

“I had a few weeks out but I’m just coming in to my stride,” said Millar.