Piotr Kowalik, an 18-year-old central defender, has signed a contract with Stal Mielec until the end of June 2027, with an option for an additional season. Previously, he was with Sandecja Nowy Sącz, where he played 27 matches in the 2023/2024 season in the II liga and scored two goals in 31 matches after the team's relegation.