Clemson, Auburn, Oklahoma, Wisconsin are playoff top 4

Clemson quarterback Kelly Bryant (2) scrambles from the pocket against South Carolina linebacker T.J. Brunson (6) during the first half of an NCAA college football game Saturday, Nov. 25, 2017, in Columbia, S.C. Clemson defeated South Carolina 34-10. (AP Photo/Sean Rayford)

Clemson, Auburn, Oklahoma and Wisconsin will enter championship weekend positioned to earn a playoff spot with just one more victory.