SOUTH BEND, Ind. — No. 13 Notre Dame has seen its offense grow up quickly with redshirt freshman quarterback C.J. Carr at the controls.

But a switch in the player snapping the ball to him will be the center of attention — literally — when the Irish host No. 20 USC on Saturday (6:30 p.m., NBC-5).

Ashton Craig, one of the top centers in the nation, suffered a season-ending right knee injury in Notre Dame’s 36-7 victory against N.C. State..

Sophomore Joe Otting will start at center for the Irish (4-2), who rack up 40 points per game (14th in the nation) and average 465.5 yards (21st).

Craig also suffered an injury last season and Pat Coogan stepped in, playing a key role in Notre Dame’s run to the national championship game. Coogan is suiting up for No. 3 Indiana now, the Marist alumn

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