Only Wisconsin and Ohio State remain in the conference championship picture and the College Football Playoff discussion.
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No. 8 Ohio State scored on its first six possessions -- including J.T. Barrett's 100th career touchdown pass -- as the Buckeyes routed Illinois 52-14 on Saturday and clinched the Big Ten East title.
FPI: Buckeyes overwhelming favorites vs. Illini
Ohio State has won eight straight and 11 of the last 12 meetings between these schools. Illinois' last win in the series came in 2007, when the unranked Illini stunned the No. 1-ranked Buckeyes in Columbus. ESPN's FPI feels good about OSU's chances at home on Saturday.
Wisconsin will try to stay in control of their playoff destiny against Michigan, while Ohio State will look to make up some ground in the race.
Illinois an old nemesis for Ohio State
Illinois is a heavy underdog this week, but the Illini are familiar with big upsets at Ohio Stadium. Overall, Illinois has lost 18 straight games against AP-ranked opponents, last winning in 2011 against then-No. 22 Arizona State. (ESPN Stats & Info)
The Badgers kept their College Football Playoff hopes alive and sewed up the West, while the East remained up for grabs.
Richard Lagow threw for 289 yards and two touchdowns, leading Indiana to a 24-14 victory over Illinois on Saturday.
Wisconsin is the Big Ten's only realistic hope for the College Football Playoff, and a visit from No. 20 Iowa is the Badgers' toughest test to date.
Purdue junior quarterback David Blough is out for the rest of the season following a severe injury to his right leg during a win against Illinois over the weekend.
The weekend wasn't kind to Big Ten teams who have an eye on the College Football Playoff, which makes Wisconsin's consistency all the more valuable.
Purdue's aggressive defense registered nine tackles for loss, including five sacks, and the Boilermakers snapped a three-game losing streak on Saturday with a 29-10 victory against Illinois.
Help us determine the best performances from Week 9 in the Big Ten and look ahead to Week 10.
Ohio State registered a remarkable comeback win over Penn State, which pushes the Buckeyes past the Nittany Lions in the conference power rankings.
Alec Ingold and Garrett Groshek scored on short runs in the first half, offensive lineman Michael Deiter added another touchdown on a trick play late in the game, and No. 5 Wisconsin beat Illinois 24-10 on Saturday to remain unbeaten.