Unified WBC, WBA and IBF World Champion Jermell Charlo and WBO World Champion Brian Castano will battle for undisputed status at super welterweight as all four 154-pound belts hang in the balance for the first time in history on Saturday, July 17 live on SHOWTIME from AT&T Center in San Antonio in a Premier Boxing Champions event.

SHOWTIME CHAMPIONSHIP BOXING begins at 9 p.m. ET/6 p.m. PT and will also feature unbeaten Interim WBA Lightweight Champion Rolando “Rolly” Romero taking on Austin Dulay in the co-main event, plus unbeaten middleweight Amilcar Vidal matching up against veteran contender Immanuwel Aleem in a 10-round bout that opens the telecast.

Tickets for the live event, which is promoted by Lions Only Promotions and TGB Promotions, are on sale now and can be purchased through www.attcenter.com. Romero vs. Dulay is co-promoted with Mayweather Promotions.

After years of scintillating matchups, memorable showdowns and drama-filled bouts, the super welterweight division will crown an undisputed champion on July 17 when the unified champion Charlo puts his three titles on the line against the hard-charging world champion Castano. The winner of this matchup will become the first four-belt champion of the 154-pound division.

Houston’s Charlo (34-1, 18 KOs) became a unified champion in his last fight, dropping Jeison Rosario three times on his way to an eighth-round knockout that earned him the WBA and IBF titles. Before that fight, Charlo had avenged the only loss of his career, as he reclaimed his WBC belt via an 11th-round knockout of Tony Harrison in one of 2019’s best fights. The 31-year-old is trained by Derrick James in Dallas and won his first world title in his debut fight with James by scoring an eighth-round knockout of John Jackson in 2016. He followed up that victory with three successful defenses, knocking out Erickson Lubin and Charles Hatley, while winning a decision over former world champion Austin Trout.

The 31-year-old Castano (17-0-1, 12 KOs) put on a spectacular performance to capture the WBO title in February, as he dominated Patrick Teixeira to wrest the belt away via unanimous decision. A native of Buenos Aires, Argentina, a win on July 17 would be a monumental achievement in the storied history of Argentine boxing. Prior to winning his title, Castano fought to a draw against two-division world champion Erislandy Lara in a 2019 action fight, and also owns triumphs over Michel Soro, Cedric Vitu and Wale Omotoso. A highly experienced amateur, Castaño notched victories over unified welterweight champion Errol Spence Jr. and top middleweight Sergiy Derevyanchenko before he turned pro.  

A rising prospect in the Mayweather Promotions’ stable, Romero (13-0, 11 KOs) won his interim title in August 2020 via unanimous decision over then unbeaten Jackson Marinez. The 25-year-old followed that victory up with an impressive seventh-round TKO over Avery Sparrow in January. Representing his hometown of Las Vegas, the undefeated Romero began his pro career with knockouts in 10 of his first 11 fights.

Dulay (14-2, 10 KOs) enters this fight the winner of three out of his last four bouts, as he seeks a career-best triumph over Romero on July 17. The 25-year-old most recently defeated Jose Gallegos by unanimous decision in November 2020, putting him back in the win column after a decision loss against former title challenger Diego Magdaleno. Fighting out of his hometown of Nashville, Tennessee, Dulay’s only other pro loss came against unbeaten rising interim super featherweight champion Chris Colbert.

Born in Montevideo, Uruguay, Vidal (12-0, 11 KOs) now fights out of Coachella, California, having beaten previously undefeated fighters in his last three bouts. The 25-year-old made his U.S. debut with a stoppage of Zach Prieto in November 2019, then returned quickly to knock out Leopoldo Reyna in January 2020. Most recently, the undefeated middleweight stopped Edward Ortiz in the second round of their November 2020 clash.

The 27-year-old Aleem (18-2-2, 11 KO) has been sparring with WBC Middleweight World Champion Jermall Charlo as he prepares to make his return to the ring. Born in East Meadow, New York and now residing in Richmond, Virginia, Aleem will look to bounce back from a draw against Matt Korobov and a majority decision loss against Ronald Ellis in his last two fights. Unbeaten in his first 18 pro bouts, Aleem owns an impressive stoppage victory over then unbeaten Ievgen Khytrov in their memorable 2017 brawl.