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Spain's youngest players during the 1933 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 |
|---|---|---|---|
| Valle | 18:316 | 6891 | 30 Apr 1933v Yugoslavia |
| Leonardo Cilaurren | 20:148 | 7453 | 02 Apr 1933v Portugal |
| Eduardo Gonzalez 'Chaco' | 22:37 | 8073 | 21 May 1933v Bulgaria |
| Ramon Zabalo | 22:296 | 8332 | 02 Apr 1933v Portugal |
| Luis Regueiro | 24:275 | 9041 | 02 Apr 1933v Portugal |
| Crisanto Bosch | 25:97 | 9229 | 02 Apr 1933v Portugal |
| Martin Marculeta | 25:190 | 9322 | 02 Apr 1933v Portugal |
| Jacinto Fernandez Quincoces | 27:259 | 10121 | 02 Apr 1933v Portugal |
| Ciriaco Errasti | 28:258 | 10485 | 23 Apr 1933v France |
| Ricardo Zamora | 32:71 | 11759 | 02 Apr 1933v Portugal |