Notre Dame's quest to remain in the College Football Playoff mix has hit a speed bump, as quarterback Ian Book will reportedly miss Saturday's game against Florida State.

Per Irish Sports Daily's Matt Freeman, Book will sit out after suffering "multiple injuries to his midsection" during Notre Dame's 31-21 win over Northwestern on Nov. 3.

Per ESPN's Adam Rittenberg, Book is only expected to miss one game and should return Nov. 17 against No. 13 Syracuse.

Book took over as Notre Dame's starting quarterback Sept. 22 against Wake Forest. The junior from California has thrown for 1,824 yards with 15 touchdowns and is completing 74.5 percent of his attempts this season. He's thrown at least two touchdowns in all six games as the starter.