Jadeveon Clowney to IR and the Texans' corresponding moves

Though the Houston Texans announced last week they'd be placing No. 1 overall draft pick Jadeveon Clowney on injured reserve after his third surgery of the season and second on his right knee, they didn't actually do it until Wednesday.

Clowney had microfracture surgery in Houston on Monday.

With Clowney down, the Texans called up Jason Ankrah to their active roster. When the season began, Ankrah was the only undrafted rookie to make the team's active roster. He went back down to the practice squad for several weeks before being called back up Wednesday. Ankrah is now one of two undrafted rookies on the active roster, joining tight end Anthony Denham, who was signed from the practice squad last week.

The Texans filled their practice squad with Kourtnei Brown, a defensive end who came out of Clemson in 2012.