On April 23, 2000 at K-1 The Millennium, Le Banner fought against Kyokushin World Open Karate Tournament 1999 champion Francisco Filho. Just 1 year before from this match, Filho had beat 1999 K-1 GP champion Ernesto Hoost by knockout. But Le Banner knocked out Filho unconscious with a left straight punch in the first round. This knock out is called "The biggest KO of this thousand years" (or the Millennium KO) by the ringside announcers and Japanese media. Le Banner's left arm and left punch have been called the "Golden Left" since this match.