Jaime Munguia’s matchup with Nikita Zon raises the biggest question about the October 31 Riyadh undercard that Mike Coppinger describes as “stacked”: what happened to his ordered defense against Bektemir Melikuziev?
Coppinger hyped the Canelo Alvarez vs. Christian Mbilli undercard on X, pointing to Team Mexico’s combined 264-11 record against Team World’s 176-4. Those totals might impress casual fans, but adding up wins and losses tells readers little about whether the individual fights will be competitive.
The matchmaking heavily favors the Mexican side. The visiting opponents appear to have been picked to give the featured fighters wins, making “Mexico vs. The World” sound more competitive than the card looks on paper.
Munguia has been paired with a little-known opponent while his mandatory challenger waits. The WBA ordered Munguia to defend against Melikuziev on September 21, with negotiations running through October 21. The organization said his mandatory defense period had already expired on August 30.
The event’s official press release confirms Munguia will defend his WBA title against Nikita Zon (12-0-1) on October 31 in Riyadh. That makes the decision to bypass Melikuziev harder to explain. Zon is ranked ninth by the WBA, while Melikuziev is the mandatory challenger the organization has already ordered Munguia to face.
Zon is ranked ninth by the WBA, so he qualifies as a ranked contender. That does not explain why he should receive a title opportunity ahead of Melikuziev, who holds the mandatory position. Whether the WBA has approved Munguia–Zon as a voluntary title defense remains unconfirmed.
Reports that Munguia’s team offered Melikuziev step-aside money make the matchmaking harder to sell. Melikuziev reportedly rejected the offer and wants his title fight. Earlier reporting named Keiber Gonzalez as the proposed alternative opponent; now Zon appears on the announced card. The opponent has changed, but Melikuziev is still waiting.
The other listed bouts include Rafael Espinoza against Lorenzo Parra, Lindolfo Delgado against Arthur Biyarslanov, and David Picasso against Carl Martin. There are recognizable names on the Mexican side, but the lineup reads more like a series of fights designed to produce wins for the featured fighters than a collection of evenly matched contests.
Delgado–Biyarslanov offers some interest, and an underdog can always upset a promotion’s plans. Still, calling the entire undercard “stacked” oversells what is on paper.
Those combined records look good on a poster, but they don’t tell fans who these fighters have beaten. An unbeaten record built against weak opposition offers little proof that a challenger can compete with the opponent waiting for him in Riyadh.
Munguia vs. Nikita Zon exposes the real problem with this card. A fringe contender lands the Riyadh payday while Melikuziev, who has already earned his mandatory shot, gets pushed aside and told to keep waiting.
Mexico vs. The World undercard is stacked for Oct. 31 in Riyadh. Combined record of Team Mexico: 264-11. 🇲🇽
Team World: 176-4. 🌎 https://t.co/NdjxjkRpzW
— Mike Coppinger (@MikeCoppinger) October 8, 2026
Canelo-Mbilli undercard
Jaime Munguía vs. Nikita Zon
Rafael Espinozo vs. Lorenzo Parra
Lindolfo Delgado vs. Arthur Biyarslanov
David Picasso vs. Carl Martin
Reito Tsutsumi vs. Raymundo Rojas
Sultan Al-Mohammed vs. Erick Villegas
Bek Nurmaganbet vs. Marcos Vázquez
Carlos Emiliano vs. Flavius Biea
Bryan León vs. Héctor Aguirre