Colts promote Kerwynn Williams, place Vick Ballard on injured reserve

The Colts have placed running back Vick Ballard on injured reserve and have promoted rookie tailback Kerwynn Williams from the practice squad to replace him. The roster move was disclosed in the NFL’s Friday transactions. The Colts’ starting tailback, Ballard suffered a torn anterior cruciate ligament in a practice drill on Thursday. The 5-foot-8, 195-pound…