Bills sign DT Andre Fluellen to active roster; add LB IK Enemkpali, QB Alex Tanney to practice squad

'Fluellen’s spot on the 53-man roster could be tenuous – fellow defensive tackle Marcell Dareus is slated to return next week from a one-game suspension. In 77 career games, Fluellen has made 65 tackles, including 10 for loss, and 4.5 sacks.'