Floyd Mayweather and Andre Berto squared up to one another at the weigh-in ahead of their Las Vegas fight on 12 September. The showdown between 'Money' Mayweather and 'The Beast' Berto is set to be Mayweather's 49th fight and his last bout in the ring before he retires.

Mayweather, 38, beat Manny Pacquiao in May of this year in what was described as the "fight of the century", and will again risk his WBC and WBA welterweight world titles.

A victory for Mayweather would see him match the late Rocky Marciano's record, who retired in April 1956 with a clean sheet of 49-0. The match will be the last out of six fights in a record-breaking deal between Mayweather and the US network Showtime.