The 24th fight of Floyd Mayweather Jr.’s career may have been his toughest.

On October 21, 2000, the 1996 U.S. Olympic bronze medalist, already a world champion at 130 pounds, engaged in a non-title bout against Emanuel Augustus on HBO’s KO Nation series. It was a pitched battle for as long as it lasted, the unorthodox journeyman giving the elite Mayweather all he could handle until he was halted in the ninth round.

When it was over, Augustus went back to the trenches of the regional circuit, popping up every now and then for televised wars with the likes of Micky Ward and Ray Oliveira.