If BJ wants to fight and wants to train I don't think there is a fighter not named GSP in the WW or LW division that can beat him. Rory is a great fighter but he is not a specialist in anything and BJ is a beast no matter where the fight goes.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen
The Toxic Terrors (FFL)
Demetrious Johnson*Eduardo Dantas*Rafael Silva*Zach Makovsky*Michael Page