Football (Now and Then) 71 years old

An old-timer tells his grandson that old-time football players could take a modern team, so we see a game with just that match-up: Bygone U. vs. Present State. More specifically, the Bygone U. team of 11 vs. Present State's dozens of special squads and support personnel. Even the stadium, fans, and press are modern vs. old-time. The game is close, and fiercely fought.