Koreshkov vs Tibau and Romanov vs Muniz set for BetCity Fight Nights 138

Promotion chief Kamil Gadzhiev has confirmed two welterweight Grand Prix bouts for BetCity Fight Nights 138, scheduled for June 6 in Saint Petersburg. Andrey Koreshkov will square off with Gleison Tibau, and Sergey Romanov will take on Andre Muniz in the second announced matchup.

Koreshkov, known as "Spartan," carries an impressive 19-2-0 record into the contest. The six-foot Russian welterweight is one of the more active and accurate strikers in the division, landing 2.84 significant strikes per minute while also averaging 4.8 takedowns per 15 minutes — a well-rounded threat on both feet and on the mat. He is 35 years old.

His opponent, Gleison Tibau, is a 42-year-old Brazilian southpaw out of American Top Team who brings a wealth of experience to the cage with a 33-14-0 record. Standing five-foot-ten with a 71-inch reach, Tibau has long been a dangerous grappler, averaging over four takedowns per 15 minutes across his career.

The co-featured Grand Prix bout sees Sergey Romanov matched against Andre "Sergipano" Muniz, a 36-year-old Brazilian southpaw with a 24-8-0 record. Muniz stands six-foot-one with a 78-inch reach and brings genuine finishing ability to the table, posting a striking accuracy of 48 percent alongside nearly four takedowns and 1.1 submission attempts per 15 minutes for his career.

Why it matters

• Both bouts are part of a welterweight Grand Prix, meaning results will carry direct bracket implications
• Koreshkov's combination of volume striking and elite takedown rate makes him a stylistic puzzle for the experienced but older Tibau
• Muniz's submission threat and long frame could test Romanov's defensive wrestling
• The June 6 Saint Petersburg card now has two confirmed high-stakes welterweight contests anchoring the event