All signs seem to point that Dumervil will be able to play.
On the Lions side of things, running back Reggie Bush is questionable with his calf injury. He was listed as a limited participant in practice.
Here's the official injury report for Monday:
QUESTIONABLE: LB Elvis Dumervil (ankle), S Brynden Trawick (ankle).
PROBABLE: CB Lardarius Webb (abs).
DOUBTFUL: CB Chris Houston (toe), CB Darius Slay (knee).
QUESTIONABLE: DE Ezekiel Ansah (shoulder), RB Reggie Bush (calf).