Juan Francisco Estrada defended his unified flyweight titles with a 10^th-round knockout of Hernan Marquez on Saturday at Centro Convenciones in Puerto Penasco, Mexico, utilizing a body assault that their Mexican compatriot Ruben Olivares would’ve been proud of.

Estrada (33-2, 24 knockouts) scored a total of seven knockdowns against Marquez (39-6-1, 28 KOs), including two knockdowns in rounds six, seven and ten, plus another in round nine.

Estrada, who was making the fifth defense of the unified titles he won from Brian Viloria in 2013, started off the knockdown fest with a right hand to the body that caused the 27-year-old Marquez to drop on delayed effect. Estrada immediately returned to the body, sinking Marquez a second time with a barrage of hooks to the midsection.

Sensing that Marquez was still vulnerable to the rib cage, Estrada continued to target the body, knocking him down with a left hook downstairs midway through the seventh. Another left hook to the body as Marquez was throwing his right scored another knockdown.

The ninth round was a relatively uneventful round as Marquez was only knocked down once – on an unremarkable left hook that demonstrated Estrada’s strength advantage and Marquez’s weakened state.

The end came a round later as Estrada blasted Marquez with a left hook that dropped Marquez for a near 10-count. Marquez rose up on unsteady legs and was dropped following another flurry from Estrada before a right hand scored the final knockdown of the fight. The match was waved off at the 1:26 mark.

Estrada remains the No. 1 contender at flyweight to RING champion Roman Gonzalez, who defeated Akira Yaegashi in 2014 to win the WBC and lineal title. Gonzalez was also the last man to beat Estrada, having gotten the job done in 2012 at 108 pounds.

The loss is Marquez’s fifth by knockout. Marquez, 27, a former WBA flyweight titleholder who held the belt for a year-and-a-half from 2011 to 2012, had been on the slide following knockout losses to Giovani Segura and McJoe Arroyo, facing nondescript opposition leading up to the Estrada fight.