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. 9 Oklahoma held off Iowa State 42-41 on Saturday night. Purdy connected with Sean Shaw for a 33-yard touchdown to trim Oklahoma's lead to 42-35, then Lawrence White intercepted Hurts to give Iowa State good field position and set up the final sequence. Oklahoma: The Sooners barely hung on and still have questions about their defense heading into the showdown with Baylor. Iowa State is a respected opponent, so the Sooners won't be downgraded for playing a close game.