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Switzerland's oldest players during the 1971 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 given in days, and in years and days, from their date of birth.
| Player | Age (Y:d) | Age (days) | Match |
|---|---|---|---|
| Anton Weibel | 29:245 | 10838 | 12 May 1971v Greece |
| Georges Perroud | 29:186 | 10779 | 12 May 1971v Greece |
| Roland Citherlet | 29:99 | 10692 | 05 May 1971v Denmark |
| Rolf Blättler | 28:200 | 10427 | 12 May 1971v Greece |
| Karl Odermatt | 28:146 | 10373 | 12 May 1971v Greece |
| Marcel Kunz | 27:346 | 10208 | 05 May 1971v Denmark |
| René-Pierre Quentin | 27:273 | 10135 | 05 May 1971v Denmark |
| Kobi Kuhn | 27:212 | 10074 | 12 May 1971v Greece |
| Marc Berset | 27:192 | 10054 | 20 Dec 1970v Malta |
| Peter Wenger | 26:253 | 9750 | 20 Dec 1970v Malta |
| Peter Ramseier | 26:163 | 9660 | 12 May 1971v Greece |
| Mario Prosperi | 25:280 | 9412 | 12 May 1971v Greece |
| Fritz Künzli | 25:123 | 9255 | 12 May 1971v Greece |
| Pier-Angelo Boffi | 25:67 | 9199 | 05 May 1971v Denmark |
| Walter Balmer | 23:44 | 8445 | 12 May 1971v Greece |
| Pierre-Albert Chapuisat | 23:36 | 8437 | 12 May 1971v Greece |
| Kurt 'Kudi' Müller | 22:360 | 8396 | 05 May 1971v Denmark |
| Daniel Jeandupeux | 22:93 | 8129 | 12 May 1971v Greece |
| Ernst Rutschmann | 22:5 | 8041 | 15 Nov 1970v Hungary |