College Football Playoff National Championship - Wikipedia
2023 College Football Playoff National Championship - Wikipedia
2018 College Football Playoff National Championship - Wikipedia
Penn State Nittany Lions football - Wikipedia
Bill Walsh College Football, NCAA Football Wiki
Notre Dame Fighting Irish Football: Post-Regular Season Q&A with Pat Rick, Your Friendly Neighborhood Simpleton - One Foot Down
College Football Playoff, NCAA, Bowl Games & Rankings
Alabama Crimson Tide football - Wikipedia
College Football Playoff National Championship - Wikipedia
College Football Playoff National Championship - Wikipedia
Historical Precedent for One-Loss Teams in the Playoff
Michigan State Spartans, American Football Wiki