Anthony Joshua v Joseph Parker fight announced for Cardiff in March

Briton Anthony Joshua will face Joseph Parker in a heavyweight unification world championship in Cardiff on March 31.

Joshua, 28, has the IBF and AMB belts, while the New Zealander Parker is the WBO champion.

The stadium of the Principality of Cardiff, where Joshua successfully defended his titles against Carlos Takam in October, will host the fight.

Joshua promoter Eddie Hearn tweeted