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Poland's youngest players during the 1964 season, and their age in years and days on the occasion of their final appearance, starting or coming on as a substitute.
For each player age is measured in days, and in years and days, from their date of birth to the day of their first appearance.
| Player | Age (Y:d) | Age (days) | Match |
|---|---|---|---|
| Wlodzimierz Lubanski | 16:188 | 6032 | 04 Sep 1963v Norway |
| Zygfryd Szołtysik | 20:315 | 7620 | 04 Sep 1963v Norway |
| Jerzy Musialek | 20:325 | 7630 | 04 Sep 1963v Norway |
| Piotr Suski | 21:66 | 7737 | 04 Sep 1963v Norway |
| Jerzy Wilim I | 22:20 | 8056 | 04 Sep 1963v Norway |
| Bernard Blaut | 23:244 | 8645 | 04 Sep 1963v Norway |
| Józef Gałeczka | 24:188 | 8954 | 04 Sep 1963v Norway |
| Eugeniusz Faber | 24:241 | 9007 | 04 Sep 1963v Norway |
| Antoni Nieroba | 24:248 | 9014 | 22 Sep 1963v Turkey |
| Stanisław Oślizło | 25:294 | 9426 | 04 Sep 1963v Norway |
| Fryderyk Monica | 25:319 | 9451 | 04 Sep 1963v Norway |
| Roman Lentner | 26:146 | 9643 | 10 May 1964v Republic of Ireland |
| Konrad Kornek | 26:203 | 9700 | 04 Sep 1963v Norway |
| Lucjan Brychczy | 29:82 | 10675 | 04 Sep 1963v Norway |
| Henryk Szczepanski | 30:215 | 11173 | 10 May 1964v Republic of Ireland |