Select season:
Northern Ireland's youngest 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 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 |
|---|---|---|---|
| Martin O'Neill | 21:26 | 7697 | 28 Mar 1973v Portugal |
| Trevor Anderson | 22:66 | 8102 | 08 May 1973v Cyprus |
| Bertie Lutton | 22:299 | 8335 | 08 May 1973v Cyprus |
| Sammy Nelson | 23:200 | 8601 | 18 Oct 1972v Bulgaria |
| Pat Rice | 23:215 | 8616 | 18 Oct 1972v Bulgaria |
| Liam O'Kane | 24:284 | 9050 | 28 Mar 1973v Portugal |
| Robert Coyle | 25:56 | 9188 | 28 Mar 1973v Portugal |
| Bryan Hamilton | 25:301 | 9433 | 18 Oct 1972v Bulgaria |
| Sammy Morgan | 25:319 | 9451 | 18 Oct 1972v Bulgaria |
| Eric McMordie | 26:67 | 9564 | 18 Oct 1972v Bulgaria |
| Allan Hunter | 26:110 | 9607 | 18 Oct 1972v Bulgaria |
| George Best | 26:149 | 9646 | 18 Oct 1972v Bulgaria |
| Tommy Jackson | 26:186 | 9683 | 08 May 1973v Cyprus |
| David Clements | 27:33 | 9895 | 18 Oct 1972v Bulgaria |
| Pat Jennings | 27:128 | 9990 | 18 Oct 1972v Bulgaria |
| David Craig | 28:251 | 10478 | 14 Feb 1973v Cyprus |
| Danny Hegan | 29:126 | 10719 | 18 Oct 1972v Bulgaria |
| Willie McFaul | 29:219 | 10812 | 08 May 1973v Cyprus |
| Terry Neill | 30:163 | 11121 | 18 Oct 1972v Bulgaria |
| Derek Dougan | 34:271 | 12690 | 18 Oct 1972v Bulgaria |