they're both on the tail end of their careers 33-34 imo, mayweather fights khan mid 2012 and PAC fights bradley about a month apart. If they dont fight late next year when they are 34-35. It's not going to happen ever. I say it will happen, fall of 2012. They're both trying to squeeze out as much win as they can outside of each other while at their peak, knowing that after "that" fight the loser will lose some of it's appeal even just a smidge.