Sébastien Thill, a Luxembourg international, will no longer represent Stal Rzeszów as his contract was expiring and the parties did not continue their collaboration. The 32-year-old midfielder, who joined the Polish club in September 2023, has completed a free transfer to FC Differdange 03, a two-time champion of Luxembourg. The club confirmed it has signed a contract with Thill that is valid until June 30, 2028. For the player, this move is a return to his home country, which he first left in 2020. In the 2025/2026 season for Stal Rzeszów, Thill made 23 appearances in the Betclic 1 Liga, scoring 8 goals and providing 6 assists. For the Luxembourg national team, he has earned 47 caps and scored 2 goals. His current Transfermarkt market value is €150k.