Notre Dame star quarterback Riley Leonard returned in the third quarter of the Orange Bowl on Thursday after entering concussion protocol late the first half following a big hit. Leonard's brief absence injected some uncertainty for the 7-seed Fighting Irish in their College Football Playoff semifinal battle with 6-seed Penn State.

Notre Dame QB Riley Leonard suffered an injury vs. Penn State in College Football Playoff semifinal at the Orange Bowl.

But Notre Dame was hit with a Delay of Game penalty on that first snap. But the Fighting Irish might be without starting quarterback Riley Leonard for the rest of the game. Leonard was shaken up on this hit shortly before halftime,

Notre Dame quarterback Riley Leonard was ushered off the field by officials after a possible concussion in the Orange Bowl against Penn State, but returned.

Notre Dame quarterback Riley Leonard exited the second quarter of the College Football Playoff Orange Bowl semifinal game against Penn State with an apparent he

Notre Dame football saw its backup quarterback, Steve Angeli, enter the College Football Playoff semifinal game against Penn State Thursday.

Steve Angeli led Notre Dame's first scoring drive of the Orange Bowl as Riley Leonard was evaluated for a concussion.