Anthony Joshua’s scheduled rematch against Dillian Whyte has been cancelled after the latter “returned adverse analytical findings” from a random anti-doping test.

The Voluntary Anti-Doping Association said it had informed the Association of Boxing Commissions and the British Boxing Board of Control that a “random anti-doping protocol” undertaken by Whyte had returned the adverse findings, leading to the bout being called off and an investigation being launched.

The fight had been due to take place at London’s O2 Arena on Saturday, August 12.

Fight promoter Matchroom said in a statement: “Today, the Voluntary Anti-Doping Association (VADA) informed Matchroom, the Association of Boxing Commissions and the British Boxing Board of Control that Dillian Whyte had returned adverse analytical findings as part of a random anti-doping protocol.

“In light of this news, the fight will be cancelled and a full investigation will be conducted.”