Andrey Koreshkov vs Gleison Tibau and two more bouts set for June 6

Kamil Gadzhiev announced that on June 6 at BetCity Fight Nights 138 in Saint Petersburg, fans will see welterweight Grand Prix bouts featuring Andrey Koreshkov versus Gleison Tibau and Sergey Romanov versus Andre Muniz. The event will take place as part of a welterweight tournament format. No additional details about the Grand Prix structure or other fights on the card were provided in this announcement.