It took just one play on Sept. 15 to suggest the game between the Southbridge Pop Warner pee wees and their rivals, the Tantasqua Braves, could mean trouble. Two Tantasqua players were hit so hard that their coach pulled them off the field. An emergency medical technician on the sidelines evaluated the boys, grew worried that they might have concussions, and had them take their pads off.

The boys on the teams were as young as 10, and, because of rules about safety, none could weigh more than 120 pounds. Shortly after 3 p.m. at McMahon Field in Southbridge, though, things quickly became worse. Six plays into the game, another Brave was removed after a hard hit. An official with the Tantasqua team said the eyes of one of the boys were rolling back in his head.

But the game, an obvious mismatch between teams from neighboring towns in central Massachusetts, went on, with Southbridge building a 28-0 lead in the first quarter. The game went on without the officials intervening. It went on despite the fact that the Braves, with three of their players already knocked out of the game, no longer had the required number of players to participate.

Even with what are known as “mercy rules” — regulations designed to limit a dominant team’s ability to run up scores — the touchdowns kept coming, and so did the concussions. When the game ended, the final score was 52-0, and five preadolescent boys had head injuries, the last hurt on the final play of the game.