'Lawson had arthroscopic knee surgery, but he’s expected to be cleared to participate in all off-season workouts. Lawson, Buffalo’s first-round draft choice in 2016, had shoulder surgery last May and missed all of the Bills’ off-season program and training camp as well as the first six games. In the 10 games he played, he had minimal impact with just two sacks and 13 tackles, and he actually saw a reduction in his snap counts later in the year.'