Notre Dame's secondary showed off its depth against Louisville, but the Irish need to make some improvements to get into the CFP.

Notre Dame is 3-1. Notre Dame opened the season with a 23-13 victory over Texas A&M in College State, Texas, before falling in its home opener to Mid-American Conference school Northern Illinois, 16-14, in a stunner for the Irish. The Irish bounced back with a 66-7 victory at Purdue and then dispatched Miami (Ohio), 28-3, last weekend at home.

Riley Leonard threw two touchdown passes and ran for another, and No. 16 Notre Dame capitalized on No. 15 Louisville’s first three turnovers of the season to hold on for a 31-24 victory Saturday.