The Briton was dropped twice in the fifth round at Wembley and suffered the third defeat of his professional career.

Usyk won his previous unification bout against Tyson Fury last May on a split decision and beat him again seven months later.

Joshua is riding a five-fight winning streak as he prepares to challenge for Daniel Dubois’ IB.

Ukrainian Usyk confirmed on Tuesday evening that he was giving up the IBF belt.