Kamil Gadzhiev has announced two welterweight Grand Prix bouts for Fight Nights 138 on June 6 in St. Petersburg. Andrey Koreshkov will face Gleison Tibau in one semifinal matchup, while Sergey Romanov takes on Andre Muniz in the other. These fights are part of the welterweight Grand Prix tournament. The post provides no additional details about the stakes or tournament structure, but confirms these as official bookings for the early June event in Russia.
Fight Nights 138 has its headline matchups locked in. Promoter Kamil Gadzhiev has officially announced two welterweight Grand Prix semifinal bouts for the June 6 card in St. Petersburg, Russia, with Andrey Koreshkov meeting Gleison Tibau and Sergey Romanov squaring off against Andre Muniz.
Koreshkov, nicknamed "Spartan," carries a 19-2-0 record into the tournament at 35 years old and stands six feet tall. He is one of the more active strikers in the bracket, landing 2.84 significant strikes per minute, and also brings a strong grappling threat with 4.8 takedowns per 15 minutes. Notably, he has never recorded a submission attempt, suggesting a ground game built around control rather than finishing on the mat.
His opponent, Gleison Tibau, is a 42-year-old Brazilian southpaw out of American Top Team carrying a 33-14-0 record. The five-foot-ten veteran is a prolific takedown artist, averaging 4.08 takedowns per 15 minutes across his career, though his striking accuracy sits at 31 percent.
The second semifinal features Sergey Romanov against Andre Muniz, the Brazilian known as "Sergipano." Muniz is 36 years old, holds a 24-8-0 record, and presents a well-rounded threat from his southpaw stance. Standing six-foot-one with a 78-inch reach, he strikes at 2.08 significant strikes per minute with a sharp 48 percent accuracy and averages 3.98 takedowns per 15 minutes alongside 1.1 submission attempts in the same span.
Why it matters
- Both bouts serve as official Grand Prix semifinals, meaning the winner of each advances in the tournament bracket
- Koreshkov and Tibau are both high-volume takedown fighters, setting up a potential grappling-heavy contest
- Muniz brings elite submission threat and striking accuracy, making him a technically demanding test for Romanov
- The event gives Fight Nights a strong double-headliner for its early June show in Russia
