The Wisconsin Badgers could be forced to change quarterbacks when they play at Northwestern Saturday. Junior Alex Hornibrook is going through the concussion protocol and may not be available. He wasn’t listed on the Badgers’ injury report and he was seen doing conditioning work after Thursday’s practice. If Hornibrook doesn’t play, he would be replaced by Jack Coan, who hasn’t thrown a pass this season. The winner of the game will hold first place in the Big Ten Conference West Division.