That BOA law sought to impose lifetime bans on doping offenders, but was overturned after Chambers’ legal battle which saw him compete at the London 2012 Games. He was also excluded from the Diamond League for many years after initially returning from his drugs suspension.
UK Athletics confirmed Chambers’ ineligibility to compete in Birmingham but opted not to comment specifically on his situation. “As an invitational event, UK Athletics is able to select which athletes are invited to compete at this weekend’s meeting with a view to showcasing the best possible athletics,” said a spokesman.
Chambers sprang a major surprise when he came out of retirement two months short of his 41st birthday to run at the British Indoor Championships last weekend, but was disqualified after false-starting in the 60m semi-final.
None of the three medallists – Dominic Ashwell, Adam Thomas and Jeremiah Azu – have the European qualifying standard of 6.60 seconds, which means all of Britain’s sprinters are attempting to reach that mark before the Saturday 5.30pm deadline and convince the selectors to pick them.