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Switzerland's youngest players during the 1934 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 |
|---|---|---|---|
| Albert Guinchard | 19:121 | 7061 | 11 Mar 1934v France |
| Willy Huber | 19:337 | 7277 | 19 Nov 1933v Germany |
| Ernst Hufschmid | 20:267 | 7572 | 29 Oct 1933v Romania |
| Ernest Lortscher | 20:361 | 7666 | 11 Mar 1934v France |
| Alfred Jack | 22:46 | 8082 | 17 Sep 1933v Hungary |
| Joseph Bossi | 22:96 | 8132 | 03 Dec 1933v Italy |
| Leopold Kielholz | 22:163 | 8199 | 19 Nov 1933v Germany |
| Willy von Kanel | 23:322 | 8723 | 17 Sep 1933v Hungary |
| Severino Minelli | 24:11 | 8777 | 17 Sep 1933v Hungary |
| Andre Abegglen | 24:194 | 8960 | 17 Sep 1933v Hungary |
| Frank Séchehaye | 25:318 | 9450 | 17 Sep 1933v Hungary |
| Fernand Jaccard | 26:231 | 9728 | 27 May 1934v Netherlands |
| Willy Jäggi | 27:58 | 9920 | 24 Sep 1933v Yugoslavia |
| Raymond Passello | 29:57 | 10650 | 11 Mar 1934v France |
| Gabriele Gilardoni | 29:262 | 10855 | 17 Sep 1933v Hungary |
| Walter Weiler | 30:141 | 11099 | 25 Mar 1934v Austria |
| Max Weiler | 32:357 | 12045 | 17 Sep 1933v Hungary |