I was wondering when Calzaghe was gonna get brought up, it's been a good 10 hours since someone mentioned him. If Calzaghe's on supplements I hope he kept his reciept, he's been getting worse not better.
I think it's more to do with just having big fight experience. All of their good showings are typically against limited boxers, so they look much better than against dynamic opponents. Although I really wasn't expecting Mosley to do so well (I haven't seen the fight yet).