Kerby Joseph unsuccessfully tried to tackle James Cook by the hair during a 41-yard Bills touchdown run

While the NFL has banned certain tackles in the name of player safety -- horse collar and hip-drop tackles, for example -- grabbing a player's hair is perfectly legal. The league has told players that if they choose to wear their hair out of the helmet, opposing players are free to grab them in a tackle attempt.

James Cook experienced that on Sunday, but there was no stopping him.

During Week 15's huge matchup between the Bills and Lions, Cook found plenty of space on a second-down handoff and scampered into the secondary. In hopes of slowing down Cook, Kerby Joseph dove and grabbed hold of Cook's hair. Yeah, it didn't work.

Cook brushed off the hair pull and continued on for a 41-yard touchdown run.

That had to hurt for sure, but Cook will gladly take the six points.

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This article originally appeared on For The Win: Kerby Joseph unsuccessfully tried to tackle James Cook by the hair during a 41-yard Bills touchdown run