Yes Sherk's only chance would be in grappling.

No offense but Zab Judah would do better in MMA then Mayweather would he has a background in it like his father although he never competed. He's a Jiu Jitsu black belt so he'd have a better chance on the ground then Mayweather would.

(Plus his father was an OUTSTANDING fighter in martial arts) there was a vid of him on youtube somewhere but I can't find it now

What do you think Jetson?