| • 21/08/2021 Men's Under 17s: Squad selected for XXXVI Syrenka Cup 2021 |
| # | pos | name | club |
| 1 | G | Michał Matys |  Zagłębie Lubin |
| 12 | G | Marcel Mendes-Dudziński |  Benfica |
| 3 | D | Krystian Derkacz | Polonia Warszawa |
| 15 | D |  Mateusz Dobosz |
Ursus Warszawa |
| - | D |  Tommaso Guercio |
 Inter |
| 16 | D | Miłosz Kurzydłowski | Lechia Gdańsk |
| 5 | D | Patryk Rychlik | FASE Szczecin |
| 4 | D | Bartosz Tomaszewski | Lech Poznań |
| 14 | D | Mikołaj Tudruj | Lech Poznań |
| 6 | M | Bartosz Bernatowicz | Jagiellonia Białystok |
| 19 | M | Maciej Bochniak | Legia Warszawa |
| 8 | M | Marcel Kalemba |  1. FSV Mainz 05 |
| 11 | M | Kacper Masiak | Zagłębie Lubin |
| 2 | M | Jakub Staniszewski | Arka Gdynia |
| 20 | M | Kacper Terlecki | Zagłębie Lubin |
| 10 | M | Oliwier Wojciechowski | Jagiellonia Białystok |
| 7 | M | Dawid Zięba | Lech Poznań |
| 13 | F | Dawid Gruszecki | ¦l±sk Wrocław |
| 18 | F | Jakub Jędrasik | Legia Warszawa |
| 17 | F | Krystian Okoniewski | Lechia Gdańsk |
| 9 | F | Oliwier Sławiński | Zagłębie Lubin |
| Squad update: |
| • 30/08/2021 Men's Under 17s: Mateusz Dobosz has replaced Tommaso Guercio in the squad for XXXVI Syrenka Cup 2021 |
| PRE-MATCH FEATURES: |
| Squad-In-Numbers |
| Pre-Match Guide [Poland - Moldova] |
| Pre-Match Guide [Poland - Netherlands] |
| Pre-Match Guide [Poland - Portugal] |