EL PASO, TEXAS  - Radio Rahim catches up with Julio Cesar Chavez Jr. to discuss his win over Marcos Reyes.

Julio Cesar Chavez Jr., bounced back after suffering just the second loss of his career with a unanimous decision (97-92, 98-91, 96-93) over Marcos Reyes in the main event of SHOWTIME CHAMPIONSHIP BOXING on Saturday in front of 9,245 at the Don Haskins Center in El Paso, Texas.

Reyes was the more active fighter - he doubled Chavez's output - but simply couldn't hurt his larger opponent.  After the loss to Andrzej Fonfara in April, Chavez decided to campaign at super middleweight but failed to meet the 168-pound limit for the bout against natural middleweight Reyes.

Chavez (49-2-1, 32 KOs), who was fighting for the first time with trainer Robert Garcia, seemed to be able to land his power shots at will, however he would pick his spots and had long bouts of inactivity.  Although he was working with a new trainer, Chavez continued to bulldoze forward and fought a very similar fight as he did against Fonfara, this time against a much smaller opponent.

After the fight, Reyes (33-3, 24 KOs) preached his case to SHOWTIME reporter Jim Gray and pointed out the weight disparity.

In the co-feature, McJoe Arroyo won a technical decision over Arthur Villanueva to win the vacant IBF Junior Bantamweight World Championship after the bout was stopped at 2:10 in the 10th round due to a deep gash over Villanueva's right eye.  The fight went to the judges' scorecards and Villanueva was ahead 97-92, 98-91 after the judges scored the 10th.

The Puerto Rican Arroyo (17-0, 8 KOs) became the third fighter from the island to win a 115-pound title.

The lefty-righty matchup was at times highly technical and foul-filled.  Referee Rafael Ramos deducted a point against Villanueva (27-1, 14 KOs) for leading with his head in the sixth.  In a different clash in the sixth, a deep gash opened up over the right eye of Villanueva that ultimately led to the stoppage.  Ramos ruled that the cut was caused by an unintentional headbutt.

Dr. Brian August inspected the cut midway through the seventh round, and again after the eighth.  Ramos again signaled for August to inspect the cut in the 10th and ruled that it was too deep to continue.  In an interview with Jim Gray, August stated that he stopped the fight in the best interest of the fighter but that Villanueva claimed he was having no sight issues.

Villanueva disagreed with the stoppage and called for an immediate rematch.  

In the opening bout of the evening, undefeated 140-pound contender knocked out Fernando Angulo with a thundering right to earn a mandatory shot at the winner of the scheduled fall showdown between Viktor Postol and Lucas Matthysse for the vacant WBC Super Lightweight World Championship.

It appeared to be a difficult fight for Imam (18-0, 15 KOs), but he was always in control and supremely accurate, landing 54 percent of his power punches compared to just 17 for Angulo (28-10, 16 KOs).  Imam ended the bout in brilliant fashion with a powerful right to Angulo's ear, forcing his opponent to fall face-forward to the canvas and the referee to instantly stop the contest at :56.