J.J. Watt has re-injured his back, according to a person familiar with his condition, and the Houston Texans expect the star defensive end to be sidelined until at least December, and possibly the entire season. Watt missed training camp and Houston's four preseason games after surgery in July to repair a herniated disk in his back. It's unclear if the injury will require surgery, but the person familiar with his condition told the AP he could be placed on injured reserve as early as Wednesday. More...