Maywethers reflexes have slowed, its his technical skill that still keeps him great. Id say his boxing age and actual age are pretty much the same.
Its not all about punishment. A sprinter can be injury free for a career but the older he gets the slower his times are going to be. This is a fact.
meatballs, what truly ages fighters is the difficult training camps. the in ring problems weaken your punch resistence, all the training camps is what ages fighters. esb trolls showing how utterly clueless they are, go figure