A representative from Bayern Munich attended Jagiellonia Białystok's Conference League match against Rayo Vallecano on Thursday to observe 17-year-old winger Oskar Pietuszewski. This was not a one-time observation, as the German club has been monitoring the Polish youth international for some time and had previously watched his performances. The player is being monitored by numerous European clubs, and people from Bologna, 1. FC Köln, and FC Porto were also expected to be at the stadium in Białystok that same week. Additionally, interest from clubs such as Arsenal, Barcelona, Chelsea, and Manchester City has been previously mentioned. Pietuszewski joined Jagiellonia in July 2024 and is under contract until June 30, 2027. In the current 2025/2026 Ekstraklasa season, he has recorded 3 goals and 2 assists in 16 appearances. His market value is estimated by Transfermarkt to be €12.00m.