I don't have any definate links, but between Buckyville and the USCHO forum, word has it that Blake Geoffrion has a high ankle sprain and that Jake Gardiner has a concussion. Mike Eaves labeled the both as "major injuries" and Geoffrion is definately out for tonight's game, probably for many weeks.
The injury to Geoffrion occurred right in front of me, the way he was holding his shin/ankle I was worried he has broken his leg. While a high ankle sprain is a significant injury, a broken leg would have been worse.
This puts the Badgers down both their captains w/ Ben Street out indefinatley following successful knee surgery.
Update as more information becomes available.