Get over it mate, BJ has did well vs every WW he has faced except GSP (2nd time) & Diaz... he can handle the weight fine even tho he is better at 155... GSP & Nick Diaz are the top 2 WWs in MMA (as I keep telling people) & thats why Penn lost to them... yes Diaz is a bit bigger than Penn but his size wasn`t as significant in beating Penn as say GSPs over Penn, Nick is smaller than GSP in bulk if not height... Penn is a fantastic fighter but he lost to another one in Diaz. I said before the fight that Diaz could hang with BJ on the ground & would beat him up on the feet, I know BJ throws some punches technically more perfect than Diaz but Diaz boxing is more effective in the octagon. Ps. Lets see how the Diaz-GSP fight goes before we discuss Diaz-Anderson... but I`ll tell you something for nothing, if Diaz clears out the WW division like GSP & Silva have cleared out there divisions then you wont see Diaz hanging around dominating overmatched opponents, he`ll step up to fight Anderson, win or lose, just as Anderson should have stepped up to face Rua, Jones & co & GSP should have did likewise vs Anderson or ANY other 185 lber. Diaz is the man & a true fighter, so is Penn but the better fighter at this stage in their lives won & thats it, simple. :good