Franklin officially announced Grunkemeyer as the backup Wednesday night.
Xavier Gilliam and Ty Blanding may have a larger role on the defensive line come the College Football Playoff.
The offensive line replaced three players who were drafted after the 2023 season.
Tickets will go on sale to the general public starting at 2:30 p.m.
The Nittany Lions gave up 283 passing yards and 183 yards on the ground in the loss.
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