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

Promoter Kamil Gadzhiev has confirmed two welterweight Grand Prix bouts for BetCity Fight Nights 138, scheduled for June 6 in Saint Petersburg. Andrey Korshkov will square off against Gleison Tibau, while Sergey Romanov meets Andre Muniz, with both contests forming part of the promotion's ongoing welterweight tournament.

Gleison Tibau, the 42-year-old Brazilian southpaw out of American Top Team, brings a record of 33 wins and 14 losses into the fight. Standing five-foot-ten with a 71-inch reach, Tibau has long been a reliable grappling presence, averaging over four takedowns per 15 minutes across his career — a weapon that will likely define his approach against Korshkov.

Andre Muniz, known as "Sergipano," is a 36-year-old Brazilian competing out of Tata Fight Team Montes Claros. The six-foot-one southpaw carries a 24-8 record and boasts a 78-inch reach that gives him a considerable physical frame for the welterweight division. Muniz lands strikes at a 48 percent accuracy rate and averages nearly four takedowns per 15 minutes, supplemented by 1.1 submission attempts in the same window — marking him as a well-rounded threat on the mat.

Why it matters

• Both bouts are officially part of BetCity Fight Nights 138's welterweight Grand Prix, raising the stakes beyond standard matchmaking.
• Tibau's elite takedown volume sets up a compelling grappling dynamic against Korshkov, whose verified data was not included in the announcement.
• Muniz's combination of wrestling output and submission activity makes him a dangerous opponent for Romanov at any stage of a tournament bracket.
• The card continues the Russian promotion's established run of events in Saint Petersburg, reinforcing the city as a regular home for the series.