By Keith Idec

LOS ANGELES – Later Saturday, Jose Balderas scored a knockdown and soundly out-boxed Jose Chanez to win a unanimous decision in a four-round super bantamweight bout.

The 23-year-old Balderas (4-0), the older brother of Karlos Balderas, won by the same score, 40-35, on all three scorecards. Mexico’s Janez fell to 6-6 (3 KOs, 2 NC).

After Balderas beat Caro, Fabian Maidana stopped Andrey Klimov in the seventh round of a junior welterweight fight scheduled for 10 rounds.

Argentina’s Maidana, the younger brother of former champion Marcos Maidana, caught Klimov with a left hook and then a right hand that dropped Klimov. Referee Ray Corona stopped their fight at 2:32 of the seventh round once he determined Klimov couldn’t continue.

The 26-year old Maidana (16-0, 12 KOs) out-boxed Klimov and was winning their fight comfortably before it was stopped. Russia’s Klimov (20-5, 10 KOs) was considered a step up in competition for Maidana, but he has lost four of his past five fights.

Maidana became the first fight to beat Klimov by knockout.

Following Perez’s upset, highly touted super featherweight prospect Karlos Balderas stopped Giovanni Caro in the fourth round of a scheduled six-rounder.

Balderas, a 2016 Olympian from Santa Maria, California, used his jab, superior hand speed and power to pick apart Caro throughout their fight. He snapped back Caro’s head with a left hook in the fourth round and followed up with a left-right combination while Caro’s back was against the ropes.

Balderas’ assault prompted Taylor to step in and end their bout at 2:09 of the fourth round.

The 22-year-old Balderas improved to 6-0 and recorded his fifth knockout. Mexico’s Caro (27-24-4, 21 KOs) has been knocked out in three straight fights and is 3-13 in his past 16 bouts.

Later Saturday, the Philippines’ Ray Perez pulled off another upset when he stopped Robert Marroquin in the eighth and final round of a lightweight fight.

Marroquin appeared headed toward a decision victory when Perez buckled his legs with a left hook early in the eighth round. Marroquin came away from that exchange bleeding and clearly was hurt.

Perez pounced on him and landed several rights and lefts before Robert Garcia, Marroquin’s trainer, instructed referee Ray Corona to stop the fight. The time of the stoppage was 1:03 of the eighth round.

The 27-year-old Perez (23-10, 7 KOs) has now upset Dallas’ Marroquin (27-5-1, 20 KOs) and Christian Gonzalez (19-2, 15 KOs) in two of his past three fights.

Marroquin mostly was in control of the fight until the sixth round.

That’s when Perez hurt him by landing a right hand. A buzzed Marroquin moved away from Perez and eventually fired back to keep Perez from capitalizing on his success.

The 28-year-old Marroquin seemed fine during the seventh round, but couldn’t keep Perez off him in the eighth. He hadn’t lost by knockout or technical knockout in 10 years as a pro prior to Saturday night.

Following Glanton’s win, 19-year-old featherweight Luis Coria convincingly beat Guadalupe Arroyo in a six-rounder. Coria (9-1, 4 KOs), of Moreno, Valley, California, won every round on each of the three judges’ scorecards (60-54).

The 27-year-old Arroyo slipped to 3-13, but he has been knocked out just once as a pro.

Coria and Arroyo traded power shots during an entertaining exchange near the end of the fourth round, but neither fighter had the power to hurt his opponent in this fight. Coria battered Arroyo against the ropes toward the end of the third round, but Arroyo was able to survive.

Brandon Glanton gave trainer Robert Garcia everything he wanted to see Saturday at Staples Center.

The light heavyweight from Atlanta stopped Daniel Najera in the third round of a scheduled-six rounder on the Mikey Garcia-Robert Easter Jr. undercard. Glanton knocked down Najera in the third round and their one-sided fight quickly was stopped.

Glanton (7-0, 6 KOs) hurt Mexico’s Najera (7-3-1, 3 KOs) with a left hook that backed him into the ropes. Sensing Najera was vulnerable, Glanton threw a variety of power punches that connected and sent Najera down to one knee.

Referee Thomas Taylor immediately waved an end to the action at 1:35 of the third round. Najera, 26, lost by knockout or technical knockout for the third time in the southpaw’s past four fights.

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