The 38-year-old won with a unanimous victory (scoring 120-108, 118-110 and 117-111) as he successfully defended his WBC and WBA welterweight titles at the MGM Grand in Las Vegas.
With his 49th win, ‘Money May’ equalled Rocky Marciano’s long standing undefeated record.
Berto, who came into the fight with a record of 30 wins (23 by KO) and 4 defeats, went on the offensive in the first two rounds however most of his punches failed to land.
In the third, Mayweather struck Berto out of nowhere with a hard left hook and a round later the champ hit a overhead right to leave ‘The Beast’ legs wobbly.
The 32-year-old went on the offensive in the fifth and manoeuvred Mayweather onto the ropes but he was unable to land with any meaningful blows.
A mini brawl broke out at the end of the ninth and exchanged harsh words in the tenth.
As the fight reached it’s conclusion, many of the fans inside the sold out MGM booed the combatants.
In his post match press conference, the ‘TMT’ boss stated this would be his last fight.
He said: “My career is over, that’s official.
“You’ve got to know when to hang them up. I’m close to 40 now. There’s nothing left to prove in the sport of boxing. Now I just want to spend time with my family.
“I am leaving the sport with all my faculties, I’m still sharp and smart. I’ve accomplished everything in this sport, there’s nothing else to accomplish.
“I had a game plan from the very beginning. I always knew what I wanted to do – be outspoken, be one of a kind. To be in the sport for 19 years and to be world champion for 18 years, I’ve had a remarkable career.”
While Mayweather claims his career is over the temptation to go 50-0 and a money spinning rematch with Manny Pacquiao may be enough to convince him to reverse his decision.
Do you think this was Mayweather’s last fight? Could a blockbuster rematch with Pacquiao or a fresh challenger like Amir Khan tempt him out of ‘retirement’?
Leave your opinions in the comments section.