Huge, huge loss for Houston. Watt is a game-changer defensively, and now without Clowney, the Texans are really going to have to scheme for their pass-rush. In addition, they also have both starting corners and a third go out today. All are tough, but none as big as Watt.

HOUSTON -- Houston Texans defensive end J.J. Watt confirmed on social media that he is done for the year after injuring himself in Sunday's 27-24 win over the Oakland Raiders.

"This game can be beautiful and it can also be brutal," Watt tweeted on Sunday. "Absolutely gutted that I won't be able to finish the season with my guys and give the fans what they deserve. I truly love this game and can't stand letting you guys down. Thank you for all of the thoughts & well-wishes."

The Texans fear that Watt tore his pectoral muscle, sources confirmed to ESPN's Dianna Russini. Watt also referenced his pec in another tweet after Sunday's game.

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