Canelo Alvarez announced Tuesday that he has signed a contract to take part in year-round Voluntary Anti-Doping Association (VADA) testing:
The boxing star failed two drug tests in February with trace amounts of clenbuterol in his system, which forced him to withdraw from the highly anticipated rematch against Gennady Golovkin on May 5 at T-Mobile Arena in Las Vegas.
"The WBC rules are clear and apply to every fighter," WBC President Mauricio Sulaiman in a statement.
"All champions and top-15 fighters must enroll in the Clean Boxing Program.
Alvarez (49-1-2) had been the top-ranked contender for the WBC title.