FRISCO, Texas – Oscar Riojas ended Diego Pacheco’s knockout streak at six Saturday.

The Mexican veteran, twice the 18-year-old Pacheco’s age, withstood the taller, stronger Pacheco’s power. Otherwise, though, Pacheco completely controlled their super middleweight match on the Mikey Garcia-Jessie Vargas undercard at Ford Center at The Star, the Dallas Cowboys’ training facility.

Pacheco landed numerous hard, right hands on Riojas throughout their one-sided bout. It wasn’t until there were about 20 seconds left in it that the unbeaten Pacheco truly hurt the 36-year-old southpaw.

A right hand by Pacheco rocked Riojas, whose knees buckled from that shot. Riojas quickly came back to land a left that briefly prevented Pacheco from following up.

Pacheco connected with several more flush, right hands before the final bell sounded.

Los Angeles’ Pacheco (9-0, 7 KOs) won by the same score, 60-54, on all three scorecards over Riojas (21-13-1, 10 KOs).

Prior to Pacheco’s victory, Alexis Espino out-boxed Delvecchio Savage in a nondescript, six-round, super middleweight match.

Espino clearly out-pointed his left-handed opponent, but he couldn’t hurt Savage at any point. Las Vegas’ Espino (6-0, 4 KOs) defeated Savage (3-6-1, 3 KOs), of Tuscaloosa, Alabama, by scores of 60-54, 59-55 and 59-55.

Earlier Saturday, Leo Acevedo hammered away at Dennis Knifechief until one of his left hooks hurt Knifechief in the third round.

That shot wobbled Knifechief and backed him into the ropes. Referee Rosario Solis stepped in quickly to stop the action at 1:44 of the third round.

The first two rounds of their six-round junior middleweight match were completely one-sided, as Acevedo landed numerous flush punches on Knifechief.

The 20-year-old Acevedo, of San Bernardino, California, upped his record to 7-0 and produced his fifth knockout. Knifechief (12-12-1, 7 KOs), a gutsy journeyman from Shawnee, Oklahoma, has lost five of his past six fights, including three straight by knockout.

In the bout before Acevedo’s victory, Jesse Rodriguez overwhelmed Marco Sustaita for most of their flyweight fight.

The 20-year-old southpaw spent much of their bout backing up Sustaita with straight left hands, uppercuts and right hooks. Sustaita finally had some success in the seventh round, which he began by catching a Rodriguez with a left hook that seemed to get the 20-year-old prospect’s attention.

San Antonio’s Rodriguez, who’s trained by Robert Garcia, came back strong in the eighth round, when he ended the first fight on the Garcia-Vargas undercard.

Rodriguez landed a left hand early in the eighth that staggered Sustaita and backed him into the ropes. Rodriguez swarmed Sustaita and landed several hard power punches that made referee Laurence Cole step between them and wave a halt to their scheduled eight-rounder.

The time of the stoppage was 1:10 of the eighth round.

Rodriguez improved to 11-0 and recorded his seventh knockout. Sustaita, of Oceanside, California, slipped to 12-3-1 and was stopped inside the distance for the second time as a pro.

Keith Idec is a senior writer/columnist for He can be reached on Twitter @Idecboxing.