Marcin Flis, a 32-year-old Polish Centre-Back, stated in an interview with TVP Sport that Pogoń Siedlce has made him an offer to extend his expiring contract. Flis confirmed he received a proposal to extend his contract at Siedlce and that the club has given him its approval. He also mentioned that a final decision has not yet been made and everything will be clarified in June. Flis joined Pogon Siedlce in January 2025 and has one cap for the Poland U20 team. His current contract expires on 30/06/2026. His market value, according to Transfermarkt, is €150k.