‘Miller, who tore ligaments and cartilage in his right knee 10 months ago, was activated to the 53-man roster on Saturday after returning to practice earlier this week. The NFL’s active sack leader, Miller began the season on the physically unable to perform list, missing all of training camp and the first four games. He had eight sacks in 11 games last season, Miller’s first with the Bills, and is the NFL’s active sack leader with 123.5 in his career.’