The Nittany Lions and the Fighting Irish are each 9-9-1 in the all-time series. That tie will end Thursday, with a trip to the big one on the line.

Preview, how to watch and live updates from the College Football Playoff semifinal matchup between Penn State and Notre Dame in the Orange Bowl.

Notre Dame quarterback Riley Leonard started the second half of Thursday's College Football Playoff semifinal against Penn ...

Leonard ended up being incredibly clutch, leading the Irish on a game-tying touchdown drive late in the fourth quarter to ...

Riley Leonard and the Notre Dame Fighting Irish posted their best drive of the afternoon at the start of the 3rd quarter.

Notre Dame quarterback Riley Leonard left the College Football Playoff semifinal at the Orange Bowl late in the first half ...

Notre Dame starting quarterback Riley Leonard left a College Football Playoff semifinal late in the first half and was being evaluated for an injury.

Notre Dame star quarterback Riley Leonard returned in the third quarter of the Orange Bowl on Thursday after entering ...

Update: Leonard is back in the game. Notre Dame football quarterback Riley Leonard exited the College Football Playoff semifinal against Penn State with an injury late in the first half.

Notre Dame faced an unexpected shake-up in their showdown against Penn State when quarterback Riley Leonard exited the game ...

Notre Dame quarterback Riley Leonard took a nasty hit during Thursday night’s College Football Playoff semifinal game at the ...

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