These are the two best defenses in the country with the numbers to prove it.

Ohio State gave up the fewest points, total yards, yards per play and also was No. 1 in pass defense. Oregon was the only team to score more than 17 points on the Buckeyes. Ohio State has permitted an average of only 13 points during its last nine games, while going against Tennessee, Texas, Oregon and Penn State during this span. 

Notre Dame's offensive line has been banged-up. The Buckeyes have two potential first-round choices in their defensive line with Jack Sawyer and J.T. Tuimoloau. 

The Irish have the No. 2 scoring defense in the nation. They rank 12th in pass defense and have 19 takeaways, which was the fifth-highest. Benjamin Morrison is in the discussion for best cornerback in college football. 

Notre Dame has given up 14 or fewer points in seven of its last 10 games.

Neither quarterback, Will Howard nor Riley Leonard, is a downfield gunslinging threat.