Sean Lee, Maliek Collins ruled out for Cowboys against Lions

Dallas Cowboys linebacker Sean Lee has been ruled out Sunday against Detroit because of a hamstring injury, and defensive tackle Maliek Collins will be sidelined for a second straight week by a knee injury. Lee's absence means he will have missed at least one game because of injury in eight of his nine NFL seasons. The only exception was Lee's All-Pro season of 2016 when he sat out a meaningless finale against Philadelphia after the Cowboys had clinched the NFC East title.