These were the keys to Notre Dame's legendary comeback in the Orange Bowl against Penn State, which was the Irish's best win of the season.

After being dominated in the first half, Notre Dame amounted a legendary comeback victory to head to the National Championship.

Notre Dame and Penn State meet tonight with a trip to the National Championship on the line. We preview PSU's defense here:

Notre Dame is only one win away from a trip to the national championship—something they haven't accomplished in over a decade. Who wins?