Floyd Mayweather To Return in Summer 2011, Possibly in Dallas Cowboys Stadium

It's a combinations of things, Dave. Apart from his high octane style and the tough opposition he's been facing there's also the lifestyle which lends itself to self distruction and more importantly the wear and tear from training.

What people forget is that fighters take a lot more punishment in training then in most fights. The energy Pacquiao puts into training and fights is insane and it's tough to keep replicating that every time. Fighters like that are usually done before they're 30. Pacquiao has prolonged his shelf life a little more, but his days of extraordinary performances at this level are numbered IMO. He should do everything he can to get Floyd in the ring after Mosley.