Bartosz Mazurek, an 18-year-old talented midfielder, has signed a new contract with Jagiellonia Białystok, extending his stay with the club until June 2028. The contract includes an option for an additional year. Mazurek expressed his happiness about the contract extension, stating that it is an honor to represent the club and that he feels trusted by Jagiellonia. He aims to gain as many minutes as possible in the Ekstraklasa and perform well in the reserves.