Notre Dame moved into the top four in the second College Football Playoff selection committee rankings of the season Tuesday night.
Clemson remained No. 1, with Alabama moving up two spots to No. 2, Ohio State staying at No. 3 and the Fighting Irish up a spot to No. 4.
Notre Dame and Alabama each has one loss.
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Unbeaten Iowa received an eye-catching promotion, rising four spots to No. 5. Baylor is the highest-ranked Big 12 team at No. 6.
Three previously unbeaten teams tumbled. LSU, No. 2 last week, dropped to No. 9 after losing at Alabama, and Michigan State, which was No. 7, dropped to No. 13. No. 8 TCU fell to No. 15 after losing to Oklahoma State, which is now ranked eighth.