September 18, 2011 - Already reeling from the controversy of ducking Manny Pacquiao, Floyd Mayweather is under fan spotlight for cheap boxing tactics.
In the fourth round, Floyd Mayweather suffered a headbutt. Ortiz embraced Mayweather in the center of the ring, and as the two fighters broke, Mayweather decided to ignore boxing tradition and nail Ortiz with two quick punches to knock him out before the other fighter could raise his guard.
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