Anthony Joshua’s scheduled fight against Dillian Whyte has been cancelled after the latter returned “adverse” findings from a random drugs test.
Promoter Matchroom added that a full investigation would be conducted after the announcement from the Voluntary Anti-Doping Association.
The bout was a rematch between the two due to take place on 12 August at the O2 Arena in London.
35-year-old Whyte has not responded to the decision yet.
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Former world champion Joshua has a long-running rivalry with Whyte, who defeated him in the amateur ranks, before Joshua went on to win an Olympic gold medal at London 2012.
As professionals, they boxed in a 2015 British heavyweight title match, with Joshua coming out on top.
