LAS VEGAS: Two years after retiring from boxing, Floyd Mayweather climbs back into the ring on Saturday (Sunday in Manila) chasing history and one last mammoth payday.
The 40-year-old former welterweight champion will become the first boxer in history to post a perfect record of 50-0, if as expected, he proves too strong for Conor McGregor, the mixed martial arts star fighting in his first ever boxing contest.