It went 12 … however MAYWEATHER earned this last one.
With that additional win, Floyd matches Rocky Marciano’s record, as reaching the milestone of 49 fights undefeated, made 60 years ago.
Berto started to be very agressive at the end of ROUND 5, however Mayweather has exploited every best occasion, as making key points till the end.
Round 12 was very interesting as you can go through the official scorecard below. Then, Mayweather won by unanimous decision.