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Chile's oldest players during the 1973 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 |
|---|---|---|---|
| Jorge Toro | 34:109 | 12528 | 29 Apr 1973v Peru |
| Juan Olivares | 32:53 | 11741 | 14 Apr 1973v Haiti |
| Alberto Fouilloux | 31:266 | 11589 | 15 Aug 1972v Mexico |
| Francisco Valdes | 30:55 | 11013 | 13 May 1973v Peru |
| Guillermo Yavar | 29:142 | 10735 | 15 Aug 1972v Mexico |
| Antonio Arias | 28:216 | 10443 | 13 May 1973v Peru |
| Leopoldo Vallejos | 28:30 | 10257 | 15 Aug 1972v Mexico |
| Leonardo Veliz | 27:252 | 10114 | 13 May 1973v Peru |
| Alberto Quintano | 27:17 | 9879 | 13 May 1973v Peru |
| Alfonso Lara | 27:16 | 9878 | 13 May 1973v Peru |
| Sergio Ahumada | 24:223 | 8989 | 13 May 1973v Peru |
| Carlos Caszely | 22:312 | 8348 | 13 May 1973v Peru |
| Mario Galindo | 21:276 | 7947 | 13 May 1973v Peru |