Nigerian-born British heavyweight boxer, Anthony Joshua has admitted that former heavyweight champion Wladimir Klitschko remains the hardest puncher he has ever shared a ring with. Yet when asked to reflect on pure punching power, the 35-year-old pointed to his unforgettable 2017 battle with Klitschko at Wembley. Yeah, Klitschko,” Joshua revealed on the Pound for Pound podcast via DAZN. When I went in with Klitschko, yeah, I just knew this could go two ways. “We expect Fury to have another fight as well, if he’s going to fight AJ,” Hearn added.