AP Top 25 Takeaways: Week before showdown, Wisconsin exposed

Penn State coach James Franklin, right, and Michigan coach Jim Harbaugh, left, meet after an NCAA college football game in State College, Pa., Saturday, Oct. 19, 2019. Penn State won 28-21. (AP Photo/Gene J. Puskar)

Illinois' Josh Imatorbhebhe, second from right, celebrates with teammates including Donny Navarro (86) after scoring a touchdown in the second half of an NCAA college football game against Wisconsin, Saturday, Oct.19, 2019, in Champaign, Ill. Illinois won 24-21. (AP Photo/Holly Hart)

Oregon quarterback Justin Herbert, right, reaches over Johnny Johnson III (3) to congratulate Mycah Pittman (4) on Pittman's 36-yard touchdown reception against Washington in the second half of an NCAA college football game Saturday, Oct. 19, 2019, in Seattle. Oregon won 35-31. (AP Photo/Elaine Thompson)

Wisconsin players walk off the field as Illinois celebrates their 24-21 win in an NCAA college football game, Saturday, Oct.19, 2019, in Champaign, Ill. (AP Photo/Holly Hart)