No. 9 Oklahoma escapes with 42-41 victory over Iowa State

Oklahoma cornerback Parnell Motley (11) intercepts a pass intended for Iowa State wide receiver La'Michael Pettway (7) on a 2-point conversion attempt during the fourth quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Iowa State tight end Charlie Kolar (88) catches a pass for a touchdown between Oklahoma safety Pat Fields (10) and safety Delarrin Turner-Yell (32) during the fourth quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Oklahoma wide receiver CeeDee Lamb (2) carries past Iowa State linebacker Marcel Spears Jr., linebacker O'Rien Vance and defensive back Lawrence White, from left, during the first quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Oklahoma quarterback Jalen Hurts (1) throws under pressure from Iowa State linebacker Mike Rose (23) during the first quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Oklahoma quarterback Jalen Hurts (1) is tackled by Iowa State defensive lineman Jamahl Johnson during the second quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Oklahoma wide receiver CeeDee Lamb (2) catches a touchdown pass in front of Iowa State defensive back Justin Bickham (7) during the first quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)

Iowa State quarterback Brock Purdy (15) is tackled by Oklahoma defensive lineman Ronnie Perkins (7) during the second quarter of an NCAA college football game in Norman, Okla., Saturday, Nov. 9, 2019. (AP Photo/Sue Ogrocki)