Not sure about that, bit like Lennox, after his loss he kinda changed his style a little. Don't forget, Klitschko went on a massive winning streak after his early kos.
John Tate after Mike Weaver Donald Curry after Mike McCallum Pipino Cuevas after Tommy Hearns Jeff Fenech after Azumah Nelson II Livingstone Bramble after Edwin Rosario Sean O'Grady after Andy Ganigan
Jimmy Young. His decline after losing a very close one to Ken Norton was nothing short of alarming. One year post Norton losing twice to Ossie Ocasio. And no disrespect to 'Jaws' but he was nowhere near Ken's class.
Klitschko after Sanders. He stopped trying to be a destroyer type and adopted a much more technical and conservative approach. You could argue that Sanders and Steward shaped peak Wlad. Bert Cooper after Mercer. They beat the living **** out of each other. Mercer actually looked worse than Cooper but mentally Mercer was ok whereas Cooper seemed to fold after that every time it looked like he'd have to dig deep.
I wonder how much of it had to do with all the wars he had before Qawi ......Saad always said the best fighter he ever fought was Marvin Johnson
Floyd ruined Hatton who had up to that point demonstrated a very good chin going toe to toe with Tszyu and Collazo but after the Floyd stoppage his punch resistance was gone, seem to remember even Malignaggi rocked him. Holyfield forever took away Tyson's aura of invincibility you can see in the rematch during the ring walks and introductions that Mike looked mentally beaten.
I think the Famechon first fight was an inspired performance. He’d lost on a dominant decision to Al Colter before that even. Probably peaked around the time of the Rose fight. He said that the only fight he didn’t enjoy as far as the fight, everything surrounding it etc; was Famechon II. I think there was too much pressure on him to win at that point. In Famechon I he was a decided underdog.