Seantrel Henderson is back. The Bills have activated the offensive lineman from the suspension list, as Ian Rapoport of NFL.com tweets. To make room, cornerback Greg Mabin has been released. 
Henderson, a former starter in Buffalo, should offer some quality depth on the offensive line. He was first string for all 16 regular season games as a rookie in 2014, but things took a weird turn for him after that point. Last year, he was hit with a ten-game substance abuse policy suspension, though Henderson says he was only using marijuana to help treat symptoms of his Crohn’s disease.
In August, Henderson accepted a pay cut that brought his non-guaranteed base salary of $1.797MM down to just $690K. He’s expected to offer support for starters Cordy Glenn and Jordan Mills, which should allow rookie swing tackle Dion Dawkins to concentrate on playing in the middle.