According to a report by Łukasz Olkowicz from 'Przegląd Sportowy Onet', Jan Leszczyński is close to leaving for an unnamed club in the Bundesliga. Fredi Bobic provided information about an offer from the German league for the central defender during the current training camp in Herzogenaruach.

In the winter, Marek Papszun did not agree to the loan of 19-year-old Polish centre-back Jan Leszczyński. Pogoń Grodzisk Mazowiecki was very interested in acquiring him on loan, and ŁKS Łódź was also linked around the same time. It is probable that Pogoń Grodzisk Mazowiecki would have accepted Jan Leszczyński on loan. Leszczyński is a Poland U19 international with four caps. He is under contract with Legia Warszawa until June 2029 and has a current market value of €300k, according to Transfermarkt.