No. 19 Michigan prepares for tough test against No. 14 Iowa

Iowa head coach Kirk Ferentz watches from the sideline during the first half of an NCAA college football game against Middle Tennessee, Saturday, Sept. 28, 2019, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)

FILE - In this Saturday, Sept. 7, 2019. file photo,Michigan head coach Jim Harbaugh wears his headset on the sidelines in the first quarter of an NCAA football game against Army in Ann Arbor, Mich. Michigan is heading into the first really big Big Ten game of the season. The Wolverines face No. 13 Wisconsin in Madison on Saturday, Sept. 21, 2019. (AP Photo/Tony Ding, File)