College football rankings: Clemson, Oklahoma flip-flop; Oklahoma State rises College football rankings: Clemson, Oklahoma flip-flop; Oklahoma State rises NCAA.com AP Top 25 poll: Clemson takes Oklahoma’s No. 2 spot, closes in on Alabama CBSSports.com Michigan football drops to No. 8 in both Amway Coaches Poll, AP top 25 Detroit Free Press Full coverage 17 SEP 0
