Here is Genki Sudo fighting Eric "Butterbean" Esch at K-1: Premium Dynamite!! which took place on 12/31/03 in Nagoya, Japan.
Butterbean had a 77-10-4 boxing career with wins over Peter McNeeley (47-7) and Kenny Craven (28-20). His MMA career was respectable in its own right, as he went 15-10 with TKO's of Cabbage Correia, James Thompson and Sean O'Haire. He got a rough debut fight in that of MMA legend Genki Sudo.