Marcin Flis has joined Pogoń Siedlce after spending six months as a free agent. He has previously played for clubs such as Piast Gliwice, Stal Mielec, GKS Katowice, and ŁKS Łódź. Flis conveyed his eagerness to assist Pogoń Siedlce in maintaining their league status and to prove his worth in the upcoming season. The 31-year-old defender, who has made 114 appearances in the Ekstraklasa, chose to accept the offer from the "biało-niebieskich" after departing from ŁKS Łódź in July of the previous year. Flis highlighted his readiness to contribute to the team's efforts in the spring round, aiming to show that the struggles of the autumn season were merely a temporary setback. His addition represents the first winter reinforcement for Pogoń Siedlce as they strive to remain in the league.