When a fighter is "prime" what does it mean to "you"?

[JonesJrMayweather]

Makes you wonder what age we could say that Hopkins was in his prime. The 2001 version that wiped out Trinidad or the 2008 model that outboxed Pavlik?

Pavlik was a tailor made for the old hopkins who only needed his knowledge to beat a young fighter with too much confidence in his own power...the 2001 bernard 80/20 possibly would have stopped pavlik inside of 10...