WBC heavyweight champion Deontay Wilder’s defence against mandatory challenger Alexander Povetkin on May 21 at the Khodynka Ice Palace in Moscow has been called off.
American Wilder was due to make the fourth defence of his belt but his Russian opponent failed a drugs test.
Povetkin tested positive for meldonium, a substance that was added to the World Anti-Doping Authority (WADA) banned list last year, and the WBC has decided to postpone the bout, pending an investigation.
The WBC said in a…