Polish attacking midfielder Sebastian Kowalczyk's contract with Zagłębie Lubin will expire at the end of June and will not be extended. The 27-year-old, who joined the club in January 2026, will become a free agent and will be able to join new teams for free starting July 1. Kowalczyk has yet to be capped by the Polish national team. According to Transfermarkt, his current market value is €800k.