Football is a violent game, but watching it can be even more dangerous.

The Buffalo Bills-New York Jets game on Sunday was marred when a fan fell from the upper deck of Ralph Wilson Stadium. The incident was captured by CBS' cameras.

It looks like the fan in question was skating down a railing when he lost control and fell one level down. He landed on an unsuspecting fan in the deck below. That person reportedly suffered a head injury.

The Bills, by the way, won 37-14.

[Buffalo News]