Dolphins' Jason Marshall: Placed on injured reserve

The Dolphins placed Marshall (hamstring) on injured reserve Monday, Adam Schefter of ESPN reports.

Marshall was already ruled out for Monday's game against the Jets due to a hamstring injury that he suffered during the Dolphins' Week 3 loss to the Bills. He'll now be required to miss at least the next four games, which makes Week 8 against the Falcons on Sunday, Oct. 26 the earliest he is eligible to return. Cornell Armstrong is a candidate to see an uptick in snaps at corner due to Marshall's absence.