By Ryan Burton

Abner Mares (30-2-1, 15 KOs) scored an impressive, upset 12-round split decision over defending champion Jesus Cuellar (28-2, 21 KOs) to capture the WBA Featherweight World Championship and become a four-time boxing titlist Saturday in the main event of a SHOWTIME CHAMPIONSHIP BOXING doubleheader from Galen Center on the campus of USC in Los Angeles. Photos by Stephanie Trapp.

Mares, of Huntington Beach, Calif., by way of Guadalajara, Mexico, was victorious by the scores of 117-110, 116-111 and 112-115. Judge Kermit Bayless was the lone descender to score the hard-fought match for the Argentine.  Mares scored the bout’s lone knockdown in the 11th round. Cuellar, of Buenos Aires, had an 11-fight winning streak end.

Mares, making his first start in 16 months and first with renowned trainer Robert Garcia, executed a technically sound game plan and was the more accurate puncher than Cuellar, who was under the tutelage of Hall of Famer Freddie Roach for the first time in his career.

Cuellar is known as a devastating puncher, but he was unable to land his power shots or cut off the ring against Mares, who seemingly pocketed rounds with accuracy and a solid left hook.

Mares floored Cuellar with a straight right in the opening minute of the 11th, sending Cuellar to the canvas for the third time of his career.  The onslaught continued, with a resurgent Mares teeing off on Cuellar until he raised his hands following the final bell.