Andrey Koreshkov vs Gleison Tibau, Sergey Romanov vs Andre Muniz set for June 6

Promoter Kamil Gadzhiev has confirmed two welterweight Grand Prix bouts for BetCity Fight Nights 138, set to take place in Saint Petersburg on June 6. Andrey Koreshkov will face Gleison Tibau, while Sergey Romanov meets Andre Muniz, with both matchups part of the ongoing welterweight tournament.

Koreshkov, known as "Spartan," carries an impressive 19-2-0 record and stands six feet tall at 183 cm. The 35-year-old is one of the more active strikers in the division, landing 2.84 significant strikes per minute at 39 percent accuracy. He also brings a strong grappling threat, averaging 4.8 takedowns per 15 minutes, and has not registered a single submission attempt throughout his career.

His opponent, Gleison Tibau, is a 42-year-old Brazilian veteran out of American Top Team with a 33-14-0 record. The southpaw stands five-foot-ten with a 71-inch reach and has built his career around wrestling, averaging 4.08 takedowns per 15 minutes. His striking output sits at 1.95 significant strikes per minute, with a 31 percent accuracy rate.

Andre Muniz, nicknamed "Sergipano," brings a 24-8-0 record into his Grand Prix clash with Romanov. The 36-year-old Brazilian southpaw from Tata Fight Team Montes Claros stands six-foot-one with a long 78-inch reach. He lands 2.08 significant strikes per minute at a sharp 48 percent accuracy and averages nearly four takedowns per 15 minutes, adding 1.1 submission attempts per 15 minutes as a finishing threat on the ground.

Why it matters

• Both bouts count toward the welterweight Grand Prix tournament bracket, meaning results directly shape the path to the title.
• Koreshkov versus Tibau is a wrestling-heavy clash between a high-volume grappler and one of the division's most active fighters overall.
• Muniz's submission threat gives him a distinct finishing edge if the Romanov fight hits the canvas.