Here's how things shook out in ESPN's Power Rankings for this week.
Power Rankings voters: Edward Aschoff, Butch Davis, Heather Dinich, Brad Edwards, Chris Fallica, Rod Gilmore, Danny Kanell, Chris Low, Ivan Maisel, Ryan McGee, Adam Rittenberg, Mark Schlabach | How they voted
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Week 3 ranking: 1
Week 4 result: defeated Kent State 48-0
The Crimson Tide made quick work of Nick Saban's alma mater with a 48-0 rout of Kent State, but there was still reason for concern. Sophomore running back Damien Harris had to leave the game in the first half after suffering an ankle injury.