American heavyweight Andy Ruiz is set to be announced as Anthony Joshua's opponent on 1 June, according to reports.
Champion Joshua is looking for a new opponent for his United States debut in New York following Jarrell Miller's failed drugs tests.
Ruiz, 29, has 32 wins from his 33 professional fights, having been beaten by Joseph Parker, by majority decision, in 2016. Joshua defeated New Zealander Parker last year, taking his WBO crown.
Ruiz only fought last on 20 April, beating German Alexander Dimitrenko, who retired after the fifth round.
Press Association Sport has contacted Joshua's promoters Matchroom for comment.
Matchroom chairman Barry Hearn told Sky Sports earlier on Monday that an announcement on Joshua's next opponent would likely be made on Tuesday
