Ingo probably wouldn't take Frazier's punch any better than those guys did. He's not too elusive, Frazier is twice the force of Patterson, not mention bigger and stronger. Who had ever stopped George Chuvalo before he met Frazier? Joe got him out 3 or 4 rounds. Jimmy Ellis never had been down as a heavyweight until Joe Frazier turned the trick. Honestly I would have suggested a 1st round stoppage if Joe hadn't been a slow starter.