(March 18th) A major change has reshaped the undercard of the May 2 Cinco de Mayo weekend event at T-Mobile Arena, as Jaime Munguia will now challenge Armando Resendiz for the WBA super middleweight title after Jermall Charlo withdrew from the bout for undisclosed reasons.

The fight will serve as the co-main event to the cruiserweight championship clash between Gilberto 'Zurdo' Ramírez and David Benavidez during a PBC Pay-Per-View broadcast on Prime Video.

Charlo had been expected to challenge Resendiz, but his withdrawal—announced shortly after the matchup was initially reported—forced promoters to find a replacement. Munguia, a former junior middleweight world champion, quickly emerged as the new opponent.

The substitution alters the tone of the bout while keeping the event intact. While Charlo’s name carried championship pedigree, Munguia brings a reputation for activity and offensive pressure that could produce a more action-driven fight.

Resendiz will enter the bout making the first defense of the WBA super middleweight championship he earned following a breakthrough run in 2025.

His rise was highlighted by a major upset victory over former champion Caleb Plant in May 2025, a result widely considered one of the year’s biggest surprises. Resendiz was later elevated to full WBA champion when the title became vacant following a championship restructuring within the division.

Resendiz now 16-2 (11 KOs), the aggressive Mexican pressure fighter faces his most high-profile defense yet.

Munguia (45-2, 35 KOs) is seeking a world title in a second weight class after previously holding a belt at 154 pounds.

The 28-year-old has not fought since May 2025, when he defeated Bruno Surace by unanimous decision in a rematch that avenged a shocking knockout loss earlier in their rivalry.

That victory briefly came under scrutiny after a post-fight drug test produced an adverse finding, but the result was later ruled a false positive linked to a contaminated supplement, allowing the win to stand.

The change from Charlo to Munguia also transforms the likely style of the contest.

Resendiz is a relentless pressure fighter who attacks the body and thrives in close quarters. Munguia, known for high punch volume and durability, tends to engage rather than box cautiously.

The matchup therefore projects as a high-intensity battle of attrition rather than the more tactical contest that might have unfolded against Charlo.

May 2, 2026 – Las Vegas (PBC Pay-Per-View on Prime Video)

Main Event - WBO Cruiserweight Championship

Gilberto 'Zurdo' Ramírez vs. David Benavidez – fight

Co-Main Event -WBA Super Middleweight Title

Armando Resendiz vs. Jaime Munguia

Additional bouts are still being finalized for the undercard as promoters aim to build a Cinco de Mayo weekend lineup centered on prominent Mexican fighters.

For Resendiz, the bout represents a chance to validate his championship run against a proven former titlist.

For Munguia, it is an immediate opportunity to re-enter the championship picture and capture a world title in a second division.

Meanwhile, Charlo’s withdrawal adds further uncertainty to the career of the once-dominant middleweight champion, whose ring appearances have been sporadic in recent years.

Unified world cruiserweight champion Gilberto “Zurdo” Ramirez (48-1, 30 KOs) has confirmed the first All-Mexican showdown in the cruiserweight division against undefeated, two-division world champion David “The Mexican Monster” Benavidez (31-0, 25 KOs) on Cinco de Mayo weekend, Saturday night, May 2, in Las Vegas, Nevada.

Last month, Ramirez resumed training at Brickhouse Boxing Club in North Hollywood, California, following right shoulder surgery this past July. Before the native of Mazatlán, Mexico takes on Benavidez, “Zurdo” will defend his World Boxing Association (WBA) Super Cruiserweight World and World Boxing Organization (WBO) Junior Heavyweight World championship titles against fight Robin Sirwan Safar (19-0, 13 KOs) on January 16 in Palm Desert, California.

The 32-year-old Safar, a native of Sweden now living in Las Vegas, won his most recent fight on Nov. 8, when he decisioned previously undefeated Derick Miller Jr. (18-0) in Fort Worth, Texas. Safar upset five-time world champion Sergey Kovalev in 2024 by way of a 10-round unanimous decision to get into the world title hunt. This will mark Ramirez’ 50th pro fight during his illustrious career.

Ramirez, 34, last fought on June 28 in which he won a 12-round unanimous decision victory over Yuniel Dorticos (27-2, 25 KOs) to position himself for a possible 2026 unification fight with Jai Opetaia (29-0, 32 KOs), the International Boxing Federation and Ring Magazine world champion, or wait to unify versus the winner of the December 3rd match between WBC title holder Badou Jack (29-3-3, 18 KOs) and former WBC Cruiserweight World Champion Noel Mikaelian (27-3, 12 KOs).

Instead, Ramirez chose to fight Benavidez, the reigning WBA Light Heavyweight World Champion who will be moving up in weight to challenge Ramirez in what could very well be an instant classic.

“I’m excited about this fight, and this is something I’ve targeted for years. It will be your classic Mexican versus Mexican/American (Benavidez) war,” Ramirez said, emphasizing the long-standing buildup behind the matchup. “I’m familiar with David and his team and have shared the gym and ring with them in the past. They’re great people, but business is business, and come May, I will have my arm raised.”

When asked about Opetaia and his recent outburst, Ramirez didn’t hold back, countered with: “I’m after the biggest fights possible and I want to make sure I’m fighting the best. To be honest, I didn’t even know who Opetaia was until recently. Someone told me some things he said, and I think he might have rocks for brains. This guy hasn’t impressed me at all; he’s fought a bunch of cannon fodders to get to where he is. All these outbursts and spreading lies – saying he called my phone – reminds me of all my ex-girlfriends.”

Benavidez, 28, was born in Phoenix but his father is from Mexico and David holds dual citizenships. He stopped Anthony Yarde (27-3) this past Saturday in the seventh round. He has defeated former world champions Demetrious Andrade, Anthony Dirrell, David Lemieux, Caleb Plant and Oleksandr Gvozdyk.

Ramirez vs. Benavidez has the potential to be the leading match-up of Mexican descent fighters since 2010, when Erik Morales fought Marco Antonio Barrera.

Ramirez vs. Benavidez has the potential to be the leading match-up of Mexican descent fighters since 2010, when Erik Morales fought Marco Antonio Barrera.

T-Mobile Arena in Las Vegas is on hold for May 2nd, Cinco de Mayo weekend, 2026 for the Golden Boy, Sampson Boxing and PBC promoted WBA/WBO Cruiserweight title fight bill.