Cowboys Pro Bowl center Travis Frederick off active roster

FRISCO, Texas (AP) — Four-time Pro Bowl center Travis Frederick has been placed on the non-football illness list by the Dallas Cowboys because of a nerve condition that has kept him from playing this season.
The team also placed receiver Terrance Williams on injured reserve because of a foot injury.
Those moves Saturday cleared two spots on the active roster before Sunday’s game at Houston. One will be filled when defensive tackle David Irving returns from a four-game suspension for