Watt ruled out of game vs. Chiefs with left knee injury

The Houston Texans' defense has taken a pair of major hits in quick succession.

Star defensive end J.J. Watt's night is over after injuring his left knee in the first quarter of Sunday's game against the Kansas City Chiefs, the team has confirmed.

Watt suffered the injury on a play in which he lost his footing, and was helped off the field.

JJ Watt had to be helped off the field after not being able to put any weight on his leg pic.twitter.com/W1YrYwXJgx

- Sports Illustrated (@SInow) October 9, 2017

The Texans' defensive anchor was briefly examined, then carted off to the locker room. The extent of the injury has not yet been confirmed.

The development came moments after rush end Whitney Mercilus suffered a chest injury on the same series. He's since been ruled out for the remainder of Sunday's tilt, according to Aaron Wilson of the Houston Chronicle.

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