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Switzerland's youngest players during the 1945 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 |
|---|---|---|---|
| Willi Steffen | 20:22 | 7327 | 08 Apr 1945v France |
| Andre Neury | 23:260 | 8661 | 21 May 1945v Portugal |
| Roger Bocquet | 24:42 | 8808 | 21 May 1945v Portugal |
| Hans-Peter Friedlander | 24:153 | 8919 | 08 Apr 1945v France |
| Erwin Ballabio | 26:170 | 9667 | 08 Apr 1945v France |
| Alfred Bickel | 26:341 | 9838 | 08 Apr 1945v France |
| Eugen Walaschek | 28:292 | 10519 | 08 Apr 1945v France |
| Lauro Amado | 33:24 | 12078 | 08 Apr 1945v France |
| Georges Aeby | 34:253 | 12672 | 21 May 1945v Portugal |