South Florida and Pittsburgh were among six teams to enter The Associated Press college football poll on Sunday, matching a record for the Top 25 era.

USF and Pitt are tied for No. 24. No. 17 Stanford, No. 19 Virginia Tech, No. 20 Navy and No. 22 Iowa also entered the rankings in the second-to-last regular-season poll.

This is the fourth time six teams entered the rankings in one week since 1989, when the AP poll expanded to include 25 teams.

Alabama remained a unanimous No. 1 and Ohio State was No. 2. Clemson moved up a spot to No. 3 and Washington jumped two to No. 4. Michigan dropped two to fifth after its double-overtime loss to Ohio State.

No. 6 Wisconsin was followed by Oklahoma, Penn State, Colorado and Southern California.

Michigan-Ohio State

ESPN says the Michigan- Ohio State double- overtime thriller drew more than 16.6 million viewers, making it the most-watched college football game this season.

The game was also the most-watched college football game on ABC since the 2006 Michigan- Ohio State game drew more than 21 million viewers, and the most- watched noon ET kickoff for any game on an ESPN network.

No. 2 Ohio State beat No. 3 Michigan 30-27 in Saturday’s game.

The second most-watched game this season was Notre Dame-Texas on Labor Day night, which drew almost 11 million viewers.

ESPN says the game was also streamed online more than any regular- season game it has ever carried, with more than one million unique viewers.