J.J. Watt expected to miss rest of season after back surgery

Houston Texans All-Pro defensive end J.J. Watt has undergone back surgery and is expected to miss the rest of the season.

Watt was placed on the injured reserve on Wednesday after re-injuring his back during last week's loss to New England.

"I haven't missed a game since my sophomore year of high school," Watt tweeted. "This won't be fun, but it is necessary in order for me to return to 100 percent and play at the level that I am capable of playing at."

Watt, a three-time NFL Defensive Player of the Year, missed the entire pre-season after having surgery to repair a herniated disk in late July, but made it back for the season opener and played in his team's first three games.

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Sky Sports assess head coach Bill O'Brien's options

The 27-year-old led the NFL with 17.5 sacks last season.   

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