Floyd 'Money' Mayweather will fight his last bout against Haiti-American boxer Andre Berto on 12 September at the MGM Grand Garden Arena in Las Vegas.

The best pound-for-pound boxer announced his decision to fight his last bout in September after a huge win against Manny Pacquiao in May dubbed as the 'fight of the century'.

Even since, many boxers had wanted to fight Mayweather; one of them is Amir Khan, who has come close to a bout with Mayweather many times in the past few years. He was considered the biggest contender; Khan's interest in fighting 'Money' is no hidden secret.

But experts, critics and fans alike were surprised when Mayweather decided to fight Andre Berto, who has lost three out of his six professional fights.

There were even speculations stating Mayweather chose an easier opponent to emerge undefeated as his record reads an amazing 48-0. He is just a win away from Rocky Marciano's 49-0.

The American boxer has had to defend his choice of fighting Berto. However, one has moved ahead with Mayweather's choice, as the mega fight is just a day away.

Andre Berto, who is the underdog for the fight, has been talking a lot stating he will give his best. Berto believes he does not want to look at the bout as an underdog, but believe in his speed.

"I don't take time out of my day to sit down and look at the odds and see what other people think. If that was the case I shouldn't have made it out of where I came from, because making it out of there is slim to none," CBBS Sports quoted Berto as saying.

"End of the day it's what I believe and what my team believes. I have that rare combination of speed and power and I'm in incredible shape."

Talking about speed, Pacquaio, who is said to be one of the swiftest boxers in the ring, also could not use such special skills to hand Mayweather his first loss.

The Haiti-American has been undergoing some serious training to be in perfect shape for the clash against Mayweather. A former welterweight champion, Berto believes his athletic ability will help him defeat Mayweather.

Mayweather has been showing huge respect to Berto as 'The Best Ever' believes the former champion deserves the fight. Mayweather, who possesses a shield-like defence, has an impressive knock-out record as well.

Mayweather has knocked 26 of his opponents to emerge victorious and one should not be surprised if Berto becomes his 27th knock-out victim. It could be a perfect farewell for one of the greatest boxers to have ever graced the sport of boxing.

Mayweather knocked out Victor Ortiz four years ago to win the WBC Welterweight title.

Date -12 September

Venue - MGM Grand Garden Arena, Las Vegas

TIme - 11pm local time (Sunday, 8:30am IST )