Posted by ESPN.com's Adam Rittenberg
Northwestern starting middle linebacker Malcolm Arrington will miss the remainder of the regular season with a knee injury, the team announced today. Coach Pat Fitzgerald said there's a possibility Arrington could return for a bowl game, but the Wildcats will need to move forward without their third-leading tackler. Arrington suffered the injury last week against Purdue.
It looks like Arrington has ligament damage and could need surgery in the coming weeks. This is a big loss for the 22nd-ranked Wildcats, but both Quentin Davie and Prince Kwateng have played well at outside linebacker and need to fill the void. Sophomore Nate Williams will start for Arrington on Saturday at Indiana.
According to a team spokesman, backup quarterback Joey Elliott has been told he will not need surgery on his throwing shoulder, which he separated in the second quarter against Northwestern. It's still doubtful that Elliott will return this season, but he should be fine for spring practice, when he's expected to take over the starting quarterback position.
Elliott had replaced the struggling Curtis Painter twice in Purdue's last three games. Redshirt freshman Justin Siller now becomes Painter's primary backup.