Sprinter Dwain Chambers has been named in the Team GB athletics squad.
The runner who was found guilty of using drugs to improve his performance is a controversial choice for selectors but his recent form has earned him a place on the team.
The squad of 77 athletes have a target of winning at least eight medals including one gold at the Games, although it is hoped that the home advantage could boost the UK track and field performances.
"It is a real honour to be selected as part of Team GB today," said Chambers.
"For me representing my country in an Olympics is a privilege that should never be taken for granted. To be given the opportunity to do so in my home town has been a dream that at times has seemed very distant and is now a reality."
Chambers finished fourth in the Sydney Games in 2000 and will be hoping to put in a similar strong performance in the 100 metres in London.
However, there was not such good news for 800 metres runner Jenny Meadows who was left out of the squad in favour of Lynsey Sharp. Despite the latter only having the B qualifying standard rather than the A, Meadows has struggled to put in track appearances this year due to injury problems.
Meadows had previously claimed she would appeal if she had not been selected but the 2009 world bronze medallist and former European 800m bronze medallist has since changed her mind.
The Olympics will begin on July 27th and there are still some tickets available for events so anyone enjoying London hotel deals over the next month could still have a chance of seeing the action live.