Heavyweight champion Tyson Fury, in a profanity-laced tweet posted Monday morning, said he is retiring from boxing.
Fury tweeted that “Boxing is the saddest thing I ever took part in,” and “I’m the greatest, & I’m also retired.”
It is unclear whether the eccentric Fury will follow through with his tweet and actually retire.
Fury’s tweet comes three days after an ESPN report that he tested positive for cocaine from testing administered by the Las Vegas-based Voluntary Anti-Doping Association.
Fury had been set for an Oct. 29 rematch with former champion Wladimir Klitschko, but the English boxer pulled out of the fight last week for unspecified reasons, with promoter Mick Hennessy saying he had been “declared medically unfit to fight.”
Fury submitted to a random urine test Sept. 22 in Lancaster, England, and the results came back positive for the substance benzoylecgonine, the central compound found in cocaine and the marker for a positive test for the banned substance, according to a letter obtained by ESPN’s Dan Rafael.
The boxer is likely to be stripped of his heavyweight world title belts, and he faces a suspension for the positive drug test.