Iowa defensive end Chauncey Golston (57) intercepts a pass as Northwestern offensive lineman Rashawn Slater (70) tackles him during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Iowa quarterback Nate Stanley (4) passes the ball against Northwestern during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Iowa running back Mekhi Sargent (10) runs against Northwestern during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Northwestern head coach Pat Fitzgerald gestures to his team during the first half of an NCAA college football game against Iowa , Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Iowa head coach Kirk Ferentz gestures to his team during the first half of an NCAA college football game against Northwestern, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Iowa tight end Sam LaPorta, right, catches a pass as Northwestern defensive back Greg Newsome II, left, defends him during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Northwestern quarterback Aidan Smith (11) passes against Iowa during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)

Iowa defensive end Chauncey Golston (57) reacts after intercepting a pass against Northwestern during the first half of an NCAA college football game, Saturday, Oct. 26, 2019, in Evanston, Ill. (AP Photo/David Banks)