"To prepare for his third fight with Patterson, Ingemar sparred with a young Muhammad Ali (then Cassius Clay) on Miami Beach. After Cassius "boxed his way around the ring, as if it was him, using 'Ingo' as a sparring partner," somebody offered $100,000 to Ingemar to fight in a televised event with Ali, but Ingemar declined, saying that the fight would not draw three ticket holders and that Ali did not have the ability to step into the ring with him at the time. If This Fight Happen. Who Would Win?
Johansson had massive issues with Patterson who didn’t have the durability of Ali this would have been a one sided beat down
Any iteration of Ali from Cooper to Shavers whups him. Ali of Spinks 1 is a live dog and Ali of the rematch outpoints him. Right hands don't bother him.