Boxingtalk.com has been informed that unbeaten pound for pounder Floyd Mayweather Jr. was allegedly involved in all out brawl at The Madalay Bay's House Of Blues early this morning. Sources have indicated to us that after Mayweather's cousin from New York was knocked out with a champagne bottle, a near riot ensued.  According to our sources the dispute began over a woman. We are uncertain if any arrests have yet been made, but this situation is far from over, since the Mandalay Bay probably has all of the footage authorities would want to review, on tape. Obviously, this news can't be good for Mayweather's current probationary status, which is the result of previous court cases. Boxingtalk.com will be all over this one, REMEMBER WHERE YOU HEARD IT FIRST! (4:40 PM ET)