Chicago Tribune's Teddy Greenstein's twitter, NU's QB Dan Persa is out for the rest of the year:
Fitz on persa: ruptured achilles. Out for remainder of season. Surgery tonight. What a blow.
Huge loss for the Wildcats. Persa was arguably the best all around QB this season in the Big Ten. He MADE PLAYS. Lots of them, including several key plays to lead them to victory over Iowa today.