ANTHONY JOSHUA, Oleksandr Usyk passed their final drug test after their fight last month.
They went toe-toe for 12 rounds in front of 63,000 people at Tottenham Hotspur Stadium.
After being stunned by a unanimous points defeat to the Ukrainian, the Brit lost three of his top world titles.
The Voluntary Anti-Doping Agency, VADA, confirmed that both fighters' samples were clean.
Joshua and his opponents typically enroll in a ten- to 12-week testing program before they fight.
Jarrell 'Big Baby" Miller, an opponent scheduled for the shot, was unable to compete against the ex-Olympic gold medallist.
Joshua fought Andy Ruiz Jr., who stunned him and knocked Joshua out at Maddison Square Garden.
The Watford slugger vengeance was not over. He schooled the Mexican in 12 rounds in the Saudi desert.
These fights and his next one against Kubrat Pulev at o2 Arena were clean.
Joshua revealed that drug testers have been known to follow fighters wherever they go when they appear.
In the past, he said that "The testers follow your every move when they turn up," even when you (gestures to urinate).
"They take me along to Nando's. I can't drive by myself. It can be difficult to track your movements, and it's very annoying.
Did you miss our previous article...
https://secondsaway.co.uk/boxing/amazing-footage-of-conor-mcgregor-defeating-patrick-hyland-former-featherweight-boxing-champion-in-the-octagon
