Collazo dropped the embarrassingly overmatched Valdez three times in the second round before Valdez’s corner men asked for their flyweight bout to be stopped at Frontwave Arena in Oceanside California. Puerto Rico’s Collazo (15-0, 12 KOs), ranked No. 9 on The Ring’s pound-for-pound list, recorded his fifth straight knockout.

DraftKings listed Collazo as an unsightly 80-1 favorite over Valdez. As it turned out, those odds weren’t wide enough.

Collazo first floored Valdez (15-4-3, 12 KOs) with a straight left that turned Valdez around and sent him to his gloves and knees 24 seconds into the second round. A short right to Valdez’s temple knocked him to his gloves and knees again with 2:14 to go in the second.

Another left by Collazo dropped Valdez to all fours for the final time with 1:34 remaining in the second. Valdez got up again, but referee Thomas Taylor halted the action because a California State Athletic Commission inspector advised him that Valdez’s handlers sought a stoppage.

Collazo, 29, was scheduled to defend his Ring, WBA and WBO 105-pound championships against Joey Canoy on Saturday night. Visa issues prevented the Philippines’ Canoy from entering the United States, however, which eventually led to Valdez replacing him on three days’ notice.

The WBO inexplicably sanctioned Collazo-Valdez as a title bout, but Valdez came in 6.2 pounds overweight Friday and relegated a main event DAZN streamed globally to a flyweight non-title fight.

Valdez, 25, wasn’t ranked in the top 15 by the WBA or WBO, which should’ve eliminated him as a championship challenger.

The Monterrey, Mexico native settled for a six-round majority draw with Gerardo Rodriguez, who entered their bout with a 4-4 record, just three weeks before he encountered Collazo. Valdez previously lost by second-round knockout to Victor Rojas (then 8-3-3) in May 2025.

Conversely, Canoy (25-5-2, 15 KOs, 1 NC) is ranked No. 5 by The Ring and the WBO and No. 9 by the WBA.

Mexican light heavyweight prospect Yair Gallardo remained undefeated in the co-feature Saturday night by beating Buneet Singh Bisla unanimously on the scorecards in what developed into a competitive fight.

Gallardo (12-0, 9 KOs) dropped Gallardo early in the second round, but Bisla had some success against the 23-year-old Mexico City native and capitalized on his defensive lapses. Judges Jose Cobian (96-93), Chris Leben (98-91) and Pat Russell (97-92) still scored the action for Gallardo.

Canada’s Bisla slipped to 14-2 (7 KOs).

Referee Gerard White could’ve credited Gallardo with another knockdown with 12 seconds to go in the seventh round, but he ruled that Gallardo pushed Bisla to the canvas. A left uppercut by Gallardo several seconds earlier seemed to hurt Bisla badly and forced him to try to hold Gallardo to avoid going down.

Gallardo’s right hand to the side of Bisla’s head knocked him flat on his back exactly a minute into the second round. Bisla complained that the punch landed on the back of his head, though White ruled that it was a legal shot.

Junior welterweights: Ruslan Abdullaev (5-0, 3 KOs) KO5 Orestes Velazquez (8-2, 7 KOs)

Heavyweights: Joshua Edwards (7-0, 6 KOs) KO2 Garreth Payton (7-3, 4 KOs)

Junior middleweights: Cayden Griffiths (9-0, 8 KOs) TKO3 Alan Ayala (12-7, 8 KOs)

Junior welterweights: Daniel Garcia (14-0, 11 KOs) KO1 Christopher Rodriguez (13-3-1, 11 KOs)