- 20O
- 20W
- 20S
90% or more have a feeSome have a feeNo fee recordedS summer, W winter, O other dates
2020-21 · Summer window
By club
- Wisła Kraków6 in0 out
- Cracovia Kraków5 in0 out
- Raków Częstochowa5 in0 out
- Lech Poznań4 in0 out
- Jagiellonia Białystok3 in0 out
- Legia Warsaw3 in0 out
- Śląsk Wrocław3 in0 out
- Warta Poznań3 in0 out
- Wisła Płock3 in0 out
- Zagłębie Lubin3 in0 out
- Górnik Zabrze2 in0 out
- Podbeskidzie Bielsko-Biała2 in0 out
- Pogoń Szczecin2 in0 out
- Lechia Gdańsk1 in0 out
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources