1998-04-18 Yong-Soo Choi w rsc 9 Gilberto Serrano, Hilton Hotel, Seoul, South Korea - WBA
1998-04-18 Yong-Soo Choi w rsc 9 Gilberto Serrano, Hilton Hotel, Seoul, South Korea - WBA. Referee: Rafael Ramos. Making good use of his jab, Serrano (130) took the opening five rounds, keeping Choi (130) at arms length, but by the seventh he was noticeably tiring as the champion began to mix it more and more. With Choi concentrating his action at close quarters, Serrano was shaken up in the eighth and the warning signs were loud and clear. In the ninth, the Venezuelan was dropped by a right cross-left hook and when he regained his feet a solid jab put him down again, whereupon the referee called it off 70 seconds into the session.