Texans' JJ Watt injures left knee against Chiefs


J.J. Watt left Sunday night's game between the Texans and Chiefs after getting injured at the end of the game's opening drive. There appeared to be nearly no contact on the play.

Watt remained on his hands and knees for a couple of minutes while trainers checked on him.

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The 28-year-old needed help to get off the field and appeared to be on the verge of tears. Starting outside linebacker Whitney Mercilus went down with what looked like a left shoulder injury. Covington has 10 tackles and a sack for the Texans so far this season. Shortly thereafter, NBC sideline reporter Michelle Tafoya declared Mercilus, a 2016 second-team All-Pro, was out for the rest of the game with a chest injury. What makes this even more heartbreaking is the context of how important Watt has been to the Houston community in the wake of Hurricane Harvey. It's a potentially season-changing injury for Houston's defense.

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