Cowboys put cornerback Morris Claiborne on injured list, sign linebacker from practice squad

Dallas Cowboys cornerback Morris Claiborne was put on injured reserve Saturday, four days after season-ending knee surgery.

Dallas signed linebacker Keith Smith from its practice squad, and he is likely to play in his second game this season Sunday against Houston.

Claiborne, the third-year defensive back, injured his knee in the first quarter of last Sunday's 38-21 home victory over the New Orleans Saints. He was the sixth overall pick in the 2012 draft.

Smith provides some depth at linebacker, with Bruce Carter out against the Texans because of a quadriceps strain.