Nebraska quarterback Adrian Martinez, right, celebrates with teammate Travis Vokolek (83) after scoring on a 1-yard touchdown run during the first half of an NCAA college football game against Iowa, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Nebraska head coach Scott Frost, center, questions a call against his team during the first half of an NCAA college football game against Iowa, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Nebraska tight end Austin Allen (11) catches a pass over Iowa defensive back Jack Koerner (28) during the first half of an NCAA college football game, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Nebraska quarterback Luke McCaffrey throws a pass during the first half of an NCAA college football game against Iowa, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Iowa running back Tyler Goodson (15) is tackled by Nebraska linebacker Luke Reimer, right, during the first half of an NCAA college football game, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Iowa defensive back Matt Hankins breaks up a pass intended for Nebraska wide receiver Levi Falck (88) during the first half of an NCAA college football game, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

Iowa quarterback Spencer Petras (7) is tackled by Nebraska linebacker Caleb Tannor (2) and linebacker Garrett Nelson (44) during the first half of an NCAA college football game, Friday, Nov. 27, 2020, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)