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Czechoslovakia's youngest players during the 1955 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 |
|---|---|---|---|
| Milan Dvorak | 20:198 | 7503 | 05 Jun 1955v Belgium |
| Tadeas Kraus | 22:225 | 8261 | 05 Jun 1955v Belgium |
| Ladislav Novak | 22:323 | 8359 | 24 Oct 1954v Hungary |
| Anton Moravcik | 23:143 | 8544 | 24 Oct 1954v Hungary |
| Ladislav Kacani | 23:206 | 8607 | 24 Oct 1954v Hungary |
| Josef Masopust | 23:257 | 8658 | 24 Oct 1954v Hungary |
| Viliam Schrojf | 23:307 | 8708 | 05 Jun 1955v Belgium |
| Frantisek Safranek | 24:84 | 8850 | 27 Mar 1955v Austria |
| Svatoplk Pluskal | 24:220 | 8986 | 05 Jun 1955v Belgium |
| Jiri Hledik | 25:187 | 9319 | 24 Oct 1954v Hungary |
| Bretislav Dolejsi | 26:27 | 9524 | 24 Oct 1954v Hungary |
| Jiri Pesek | 27:296 | 10158 | 27 Mar 1955v Austria |
| Jiri Trnka | 28:185 | 10412 | 05 Jun 1955v Belgium |