Mayweather vs. Ortiz Controversial Knockout: "Protect yourself at all times"

This video captures the dramatic fourth-round sequence from the 2011 WBC Welterweight Championship bout between Floyd Mayweather Jr. and Victor Ortiz. Frustrated during an exchange along the ropes, Ortiz deliberately jumped up and headbutted Mayweather in the chin, resulting in an immediate point deduction by referee Joe Cortez. Feeling remorseful, Ortiz repeatedly apologized to Mayweather by offering a hug and touching gloves. Once referee Joe Cortez signaled to resume the action, Ortiz dropped his guard to embrace Mayweather a second time. Capitalizing on Ortiz's lack of defense, Mayweather launched a sudden left hook followed by a crisp right hand, sending Ortiz straight to the canvas for a controversial fourth-round knockout victory. The event remains a famous example of boxing's fundamental rule: "Protect yourself at all times."