Makwala turned away although 'fit to race'
Isaac Makwala was 'fit, very well and prepared to run' in Tuesday night's 400m final at the World Championships but was locked out of London Stadium by IAAF medical staff.
The Botswana athlete was diagnosed with a stomach illness but felt ready to compete against Wayne Van Niekerk in the final race of the evening.
However, officials and medical staff from the Botswana team are claiming a breakdown in communication with the IAAF and disputing how Makwala was ruled out of the championship event.
Around 30 people have been affected by a norovirus, including a number of athletes competing in east London.
Despite withdrawing, Makwala insisted he was fit to race and attempted to enter the stadium via the athletes' entrance, only to be stopped and taken to the governing body's office.
Earlier on Tuesday, Makwala had told the BBC that he was ready for the race.
"I was not that sick," he said. "I just vomited. Like any other athlete, I vomit... I could have run because I did my warm-up well and I did everything well. I was ready to run.
"They say they are waiting for the medical results but I don't know because they didn't test me. I don't know what, which medical results they are waiting for."
Simon O’Brien, of the Botswana medical team, received a letter from the IAAF detailing a medical examination their doctors did on Makwala.
It claims Botswana had representatives present, but O'Brien disputes that.
The official wants clarity from the IAAF about the situation and added that no medical tests have been carried out to test Makwala’s condition.
Olympic champion and world record holder, Wayde van Niekerk won his third global 400 metres title on Tuesday night in 43.98 seconds, fulfilling the first half of what he hoped would be a first 200-400 double for 22 years.
However, the South African’s feat was overshadowed by 24 hours of claim and counter-claim over the withdrawal of his chief rival, Makwala.