Oklahoma wide receiver Marquise Brown runs in for a touchdown during the first half of an NCAA college football game against Iowa State, Saturday, Sept. 15, 2018, in Ames, Iowa. (AP Photo/Matthew Putney)

Iowa State defensive back Greg Eisworth, bottom right, tackles Oklahoma tight end Grant Calcaterra, top, right, to force a fumble and a turnover during the first half of an NCAA college football game, Saturday, Sept. 15, 2018, in Ames, Iowa. Iowa State defensive back Richard Bowens (17) recovered the fumble. (AP Photo/Matthew Putney)

Iowa State head coach Matt Campbell, left, meets with Oklahoma head coach Lincoln Riley, right, before an NCAA college football game, Saturday, Sept. 15, 2018, in Ames, Iowa. (AP Photo/Matthew Putney)