Haloti Ngata put a good clean hit on Robert Griffin III, but that doesn’t mean it didn’t hurt like hell.

While running outside the pocket, Griffin III was hit low by the oncoming 330 pound Baltimore Ravens‘ wrecking ball. Ngata’s shoulder came in right at Griffin III’s knee and the collision caused it to snap forward in a horribly painful motion.

Knees aren’t supposed to bend that way, folks.

If you missed it yesterday or are twisted enough to want to watch it again, we’ve embedded a GIF of the hit after the bump.

Haloti Ngata injures Robert Griffin III

This wasn’t Ngata’s first rough collision with RGIII.

Haloti Ngata runs over Robert Griffin III