Tyson Fury has enrolled in the WBC's clean boxing programme, receiving the governing body's approval ahead of his fight with Deontay Wilder.
WBC president Mauricio Sulaiman had warned Fury that he must agree to its anti-doping procedure this week, including out-of-competition testing, if he wanted his December 1 bout against heavyweight champion Wilder to be considered a legitimate challenge for the belt.
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And the Briton has taken that advice on board, with Sulaiman confirming that Fury has now signed up.
"I can confirm Tyson Fury has now sent the clean boxing programme enrolment forms to VADA [Voluntary Anti-Doping Association] testing," he told BoxingScene.com. "If he wins, I will be very proud to see him as the WBC champion."
Fury returned to the ring earlier this year and agreed a Los Angeles fight with Wilder after the American failed to finalise a deal with Anthony Joshua following lengthy negotiations.