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Portugal's youngest players during the 1947 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 |
|---|---|---|---|
| Jose Antonio Travacos | 20:317 | 7622 | 05 Jan 1947v Switzerland |
| Antonio Jesus Correia | 22:276 | 8312 | 05 Jan 1947v Switzerland |
| Antonio Araujo | 23:99 | 8500 | 05 Jan 1947v Switzerland |
| Lantres de Carvalho Rogerio | 24:19 | 8785 | 05 Jan 1947v Switzerland |
| Manuel Maria Nogueira Capela | 24:241 | 9007 | 05 Jan 1947v Switzerland |
| Antonio Feliciano | 24:351 | 9117 | 05 Jan 1947v Switzerland |
| Vasco Oliveira | 25:67 | 9199 | 25 May 1947v England |
| Xico | 27:156 | 10018 | 26 Jan 1947v Spain |
| Fernando Peyroteo | 28:301 | 10528 | 05 Jan 1947v Switzerland |
| Francisco Moreira | 31:251 | 11574 | 05 Jan 1947v Switzerland |
| Joao Mendonca Azevedo | 31:256 | 11579 | 23 Mar 1947v France |
| Mariano Rodrigues Amaro | 32:151 | 11839 | 05 Jan 1947v Switzerland |
| Alvaro Cardoso | 32:356 | 12044 | 05 Jan 1947v Switzerland |