Current IBF, IBO, WBA and WBO heavyweight champion Anthony Joshua has slammed fellow Brit Tyson Fury and WBC champion Deontay Wilder in an astonishing stateside interview, the Metro report.

Joshua is currently stateside promoting his next fight with Jarrell ‘Big Baby’ Miller.

The pair were involved in a heated first press conference, with Miller shoving Joshua in their first face-off.

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The Brit is set to compete in America for the first time in his professional career, with the bout scheduled to take place on June 1 at Madison Square Garden.

However, Joshua has turned his attention to rivals Fury and Wilder in an astonishing interview with the New York Times.

The 29-year-old explained how he will ‘knock out’ Fury and ‘outbox’ Wilder.

Fury, I’m just going to knock him out. No nonsense, none of this jab-for-jab nonsense.

Just work him, work him, work him. With Wilder, I can outbox Wilder. No problem.

Fury’s a bit more elusive, so I have to just kind of pin him down a bit more, then do what I want to do.

If Joshua manages to stretch his unbeaten record to 23 with a win over Miller, it is likely the Brit will attempt to face either Fury or Wilder later in the year, with the pair set to face off for a second time in the summer.