It has yet to be confirmed, but several rap websites are reporting that WBC welterweight champion Floyd Mayweather, Jr. and former opponent Zab Judah were involved in a brief scuffle at the OPM nightclub in Las Vegas. The story was also repeated by more than one hip-hop radio station.

According to various versions of the story, Mayweather initiated a war of words with Judah and the situation quickly turned into a physical encounter. Judah reportedly suffered a few bloody knuckles from the brief skirmish.

http://www.athlebrities.com/ - this website apparently has photos but you can barely make out who is involved.