Saturday’s CHARLO DOUBLEHEADER main events featuring the world champion Charlo twins will air on SHOWTIME this Saturday, October 3 at 9:00 p.m. ET/PT.

WBC Middleweight World Champion Jermall Charlo passed his toughest test to date with high marks, earning a skilled and disciplined unanimous decision victory over Sergiy Derevyanchenko while twin brother Jermell Charlo unified the WBC, WBA and IBF 154-pound titles with a spectacular knockout against Jeison Rosario.

Jermell (34-1, 18 KOs) stole the show as he knocked out Rosario (20-2-1, 14 KOs) in stunning fashion just 21 seconds into the eighth round with a straight left jab to the body. Rosario struggled to get to his knees and appeared to have the wind knocked out of him as he was counted out by referee Harvey Dock.

Jermell became boxing’s ninth unified champion with his trainer Derrick James becoming the only current trainer with two unified titlists, including Jermell and Errol Spence Jr.

After seven completed round, Jermell held a narrow lead on all three judges’ scorecards: 66-65 and 67-64 twice.

 Jermell recorded two knockdowns before his knockout. In the closing seconds of the sixth round, Rosario from Santo Domingo, Dominican Republic, went down for the second time as Charlo connected on a short left hook that stunned Rosario, who was saved by the bell. Rosario was also sent to the canvas early as Jermell scored a knockdown on a left hook to the top of Rosario’s head in the first minute of the fight. Rosario was taken to the hospital for observation following the fight.

In the first card main event, Charlo (31-0, 22 KOs) remained undefeated in an all-out war against top contender Derevyanchenko as all three judges were in agreement in scoring the unanimous decision. The scorecards read: 116-112, 117-111, 118-110. 

The 34-year-old Derevyanchenko (13-3, 10 KOs) fought more than half the fight with a swollen right eye he suffered in the fifth round, and later developed another cut above his left eye affecting his vision in the later rounds. He had his best rounds in the sixth and seventh as he connected on a several key left hooks that seemed to daze Charlo. The game and determined Derevyanchenko landed 180 and threw 681 more punches than any previous Charlo opponent.