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, scheduled for June 6 in Saint Petersburg. Andrey Koreshkov will face Gleison Tibau, and Sergey Romanov will meet Andre Muniz on the same card.

Koreshkov, known as "Spartan," carries an impressive 19-2-0 record and stands six feet tall at 35 years old. He is an active and aggressive fighter, landing 2.84 significant strikes per minute at 39 percent accuracy while also averaging 4.8 takedowns per 15 minutes — a well-rounded threat in any welterweight contest.

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 brings a strong grappling base, averaging 4.08 takedowns per 15 minutes, though his striking output of 1.95 significant strikes per minute and 31 percent accuracy reflects a more measured offensive approach.

In the second announced bout, Andre Muniz — nicknamed "Sergipano" — brings a 24-8-0 record into the Grand Prix. The 36-year-old Brazilian southpaw stands six-foot-one with a long 78-inch reach and trains out of Tata Fight Team Montes Claros. He lands 2.08 significant strikes per minute at an efficient 48 percent accuracy and averages nearly four takedowns and 1.1 submission attempts per 15 minutes, making him a genuine dual-threat. His opponent, Sergey Romanov, was not included in the verified fighter data.

Why it matters

• Both bouts are part of a welterweight Grand Prix, raising the stakes beyond a standard main card
• Koreshkov's high takedown volume sets up an intriguing clash with Tibau's own wrestling-heavy style
• Muniz's submission threat and Romanov's unverified profile make their matchup one to watch as more details emerge