you can not call a fighter purly on one fight. We would have to see what shane looks like in his next fight to really see what has happened to him. there is a very very good chance that this was a one off bad fight for mosley.

Whos to say that he just didn't really bother for Mayorga 'coz he thought he would walk right through him? you see it time and time again in world class fighters, fighting a gimmi fight to stay busty and look good, Mayorga was hand picked so obviously they figured Shane would have very few problems, he may of trained physicaly to look good, but how much work did he do training for the actualy guy he was fighting?

We wont know until his next fight, if he looks good and does well yes you could argue it may off been mayorgas style, but i would put it down to bad prep work for the fight and not respecting him enough. If he looks bad in his next fight, then he has just aged to much for the sport.