Oskar Pietuszewski, a 17-year-old Polish winger from Jagiellonia Białystok, is reportedly being monitored by several major clubs. During a match against AZ Alkmaar, individuals associated with both Borussia Dortmund and Ajax Amsterdam attended the game to watch Pietuszewski. Jagiellonia's asking price was reportedly set at €10-15 million in November 2025, while reports from December 2025 mentioned a potential Barcelona offer of €15 million.