Cedric Benson will miss at least eight weeks due to a Lisfranc injury.

Benson may also need surgery, which would end his season.

Benson will undergo further tests to determine the extent of the injury.

Alex Green replaced Benson for the Green Bay Packers against the Colts.

"Alex did some good things (against the Colts)," McCarthy said. "There's some things he'll definitely learn from. ... (He is) a young guy that took advantage of an opportunity, and this will be an opportunity for him and James and Brandon to play this week against Houston."