The 38 year-old is a best-priced 1/50 with bookmakers to claim yet another scalp in Las Vegas on September 12 as Mayweather aims to equal the retirement record of the late great Rocky Marciano before hanging up his own gloves.
Speculation had been rife for weeks that Mayweather would avoid number one contender Amir Khan and opt to face ex-WBC and IBF title holder Berto, 31, in what many see as a one-sided and potentially drab affair for the $75 PPV asking price.
Berto is obviously delighted to have been plucked from obscurity ahead of stablemate Khan and compatriot Karim Mayfield for Mayweather’s ‘final fight’ and certainly has nothing to lose heading into the MGM Grand contest.
Haitian-American Berto is 16/1 against with the majority of oddsmakers and would need to put in a career-best performance to even come close to making a dent versus the man who proclaims himself ‘The Best Ever’ ahead of the likes of Sugar Ray Leonard, Sugar Ray Robinson and Muhammad Ali.
Mayweather defeated career nemesis Manny Pacquiao last time around in the most viewed and lucrative boxing event of all time, although is now in danger of following it up with a whimper which could go down in history as a very sad way to bow out of the sport.