Bills head coach Sean McDermott said Monday that Allen (shoulder) is considered day-to-day, Alaina Getzenberg of ESPN.com reports.
Allen missed a couple snaps in Sunday night's Week 6 win over the Giants to be checked for a head injury but quickly returned after being cleared and finished 19-for-30 passing for a season-low 169 yards, two touchdowns and one interception. Apparently the shoulder is the bigger concern (though perhaps only a minor one)following the game. He rushed just two times for 11 yards. Allen is expected to be out there Sunday against the Patriots.