Big Ben KO. He is reported to be in shape. Gonzaga seems always to be a guy with tons of potential but lacks motivation,training and heart.
Considering the punch he knocked out Shaub with, I'd say he's back to the level he was at in the IFL when he was just wrecking people.
Rothwell in shape, with his absurd power coupled with Gonzaga's tendency to fold when things don't go exactly his way could equal a short fight.