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Finland'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 |
|---|---|---|---|
| Semi Nuoranen | 30:297 | 11255 | 07 Oct 1972v East Germany |
| Matti Paatelainen | 28:354 | 10581 | 06 Jun 1973v East Germany |
| Olavi Litmanen | 27:90 | 9952 | 16 Jul 1972v USSR |
| Raimo Saviomaa | 27:52 | 9914 | 06 Jun 1973v East Germany |
| Antero Nikkanen | 27:5 | 9867 | 06 Jun 1973v East Germany |
| Esko Ranta | 26:143 | 9640 | 06 Jun 1973v East Germany |
| Pekka Heikkilä | 26:116 | 9613 | 04 Apr 1973v England |
| Pekka Kosonen | 26:95 | 9592 | 04 Apr 1973v England |
| Olavi Rissanen | 26:9 | 9506 | 04 Apr 1973v England |
| Henry Forssell | 25:163 | 9295 | 06 Jun 1973v East Germany |
| Göran Enckelman | 24:357 | 9123 | 06 Jun 1973v East Germany |
| Vilho Rajantie | 24:304 | 9070 | 06 Jun 1973v East Germany |
| Jouko Suomalainen | 24:59 | 8825 | 06 Jun 1973v East Germany |
| Jarmo Flink | 24:25 | 8791 | 07 Oct 1972v East Germany |
| Miikka Toivola | 23:330 | 8731 | 06 Jun 1973v East Germany |
| Ari Mäkynen | 23:274 | 8675 | 04 Apr 1973v England |
| Jarmo Manninen | 22:87 | 8123 | 06 Jun 1973v East Germany |
| Heikki Suhonen | 21:350 | 8021 | 06 Jun 1973v East Germany |