Barry Cofield

Jadeveon Clowney, the No. 1 overall pick of the Houston Texans, will be out four to six weeks after arthroscopic surgery on his right knee Monday.

Coach Bill O'Brien said he didn't know exactly what was repaired in Clowney's knee when he was asked if it was a torn meniscus.

"I'm not a doctor so I don't know," O'Brien said. "It's just something they went in there and tried to fix it. It seems like it went well."

Clowney, who had one tackle for a loss, was injured late in the second quarter in Sunday's win over the Washington Redskins. He was hurt when he jumped up to try and bat down a pass. He put his hand to his...