Andre Ward retired undefeated in 2017.
The American cleaned up the super-middleweight division before stepping up to Light Heavyweight to challenge feared Russian, Sergey Kovalev – where he scored two victories over him.
At one stage during his retirement there were rumours that he could return to the ring at heavyweight and against Anthony Joshua.
Speaking to Boxing News explained how he could have beaten the Brit and said: My fluidity, and my physical strength.
“I know nobody can imagine me being able to go strength for strength with Joshua because of his size and the way he looks, but I don’t think I’d have been overpowered from a physical standpoint.
“The key thing would have been my movement and my inside fighting, believe it or not, and my goal would have been to wear him down.
“He has a rocket right hand that is very, very strong if you stand in line for it. I don’t see a whole lot outside of that. His most natural punch is the right hand.
“It’d have been a dangerous proposition because you don’t wanna get hit with that with a guy that size.
“It’d have been to wear him down round after round after round and avoid his big shots in return.
“I would have let the fight come to me. I’d definitely have been trying to win.
I’ve never had problems with bigger fighters, never.
“Amateurs, pros, sparring – I’ve always done better against guys that were physically big, or taller than me.
On British boxing legend Joe Calzaghe he said:
“Man, Calzaghe – he was another guy, a competitive type of person.
“He didn’t have a lot of punching power – threw a million punches.
“Always prepared the right way, loved the father [Enzo Calzaghe] doing it with his dad, and he had that drive about him.
“He was a dog. I have nothing but respect for Calzaghe – he’s always done it the right way… Of course I believe I’d have beaten him, but it wouldn’t have been easy.
“You gotta deal with the volume, you gotta deal with the angles, you gotta deal with the southpaw stance, and you gotta find a way.
“The big, one shot would have been my concern with Anthony Joshua. He doesn’t have the style, he’s not like a big man, like George Foreman.
“George knows how to tie you up and walk you back and wear you down. [Anthony Joshua’s] trying to box and be cute as well.
“I can look out for that right hand a lot easier when you fight like that, so Joe Calzaghe would have been a tougher fight. A different style, and a different mentality.