Notre Dame quarterback Tyler Buchner suffered a high-grade AC joint sprain in his non-throwing shoulder in Saturday's loss to Marshall, Irish coach Marcus Freeman told reporters on Monday.
Buchner will undergo surgery on Tuesday and Freeman is expecting the recovery process to take four months, which would put Buchner out for the remainder of the season.
"We can all do the math and probably put it somewhere, maybe January," Freeman said. "So, that's where we're at with that. Moving forward, Drew Pyne will be our starter, and as I said, when we addressed the quarterback competition in fall camp, I had the utmost confidence in both of those guys being able to lead our offense and lead this football team.