No. 18 Sooners visit Iowa State with slim margin for error

Kansas State defensive tackle Robert Hentz II (15) tackles Oklahoma running back T.J. Pledger (5) during an NCAA college football game in Norman, Okla., Saturday, Sept. 26, 2020. (Ian Maule/Tulsa World via AP)

Iowa State tight end Charlie Kolar (88) catches a pass from quarterback Brock Purdy (15) during an NCAA college football game against TCU on Saturday, Sept. 26, 2020 in Fort Worth, Texas. Iowa won 37-34. (AP Photo/Brandon Wade)

Iowa State linebacker Mike Rose (23) is congratulated by teammates after intercepting a TCU pass during an NCAA college football game on Saturday, Sept. 26, 2020 in Fort Worth, Texas. Iowa won 37-34. (AP Photo/Brandon Wade)