Victor Ortiz vs. Floyd Mayweather Jr.
2011-09-17 : Floyd Mayweather Jr 146½ lbs beat Victor Ortiz 147 lbs by KO at 2:59 in round 4 of 12
- Location: MGM Grand, Las Vegas, Nevada, USA
- Referee: Joe Cortez
- Judge: Jerry Roth
- Judge: Adalaide Byrd
- Judge: Glenn Trowbridge
- Mayweather wins every round
- Ortiz attacked Floyd in the fourth, then intentionally headbutted him in a corner, then swung at Floyd twice after the butt.
- Referee Joe Cortez stops the action and penalizes Ortz one point for an intentional headbutt, Ortiz immediately embraced Floyd and apologized.
- Both fighters embrace again in center ring. Cortez turns away to look at the timekeeper and Floyd knocks out Ortiz, with Cortez not looking at the fighters.