Staples Center, Los Angeles - After a career spent at super middleweight, and five successful title defenses, Gilberto “Zurdo” Ramirez (40-0, 26 KOs) made a statement-making light heavyweight debut, stopping former world title challenger Tommy Karpency (29-7-1, 18 KOs) in four rounds. (photos by Mikey Williams)

Karpency elected to stay on his stool after the fourth round, as he suffered a rib injury in the opening round.

As for Ramirez, it remains to be seen whether he stays at light heavyweight or moves back down to defend his title again.

Ramirez Karpency Fight

Janibek Alimkhanuly (6-0, 2 KOs), a former amateur standout for his native Kazakhstan, passed the toughest test of his career with a 10-round unanimous decision (100-90 2X and 99-91) over Cristian Olivas (16-5, 13 KOs).  Alimkhanuly picked up the WBC Continental Americas and WBO Global middleweight belt, as he outworked Olivas to cruise to victory.

Ramirez Karpency Fight

It was a short night at the office for Italian heavyweight Guido Vianello (3-0, 3 KOs), who knocked out Lawrence Gabriel (3-2-1, 2 KOs) at 49 seconds of the opening round. Vianello represented his homeland at the 2016 Rio Olympics.

Ruben Rodriguez (6-0, 2 KOs) maintained his unbeaten record with a four-round majority decision (38-38, 39-37 and 40-36) over the battle-tested veteran Ramel Snegur (3-4-1, 2 KOs).

Ramirez Karpency Fight

Bob Arum

Ramirez Karpency Fight

Ramirez Karpency Fight

Ramirez Karpency Fight