Michigan has sent documents to the Big Ten that the school believes show three conference teams engaged in communication about the Wolverines' signals in 2022, sources told ESPN.
The three teams involved are Rutgers, Ohio State and Purdue, sources said. Purdue, which faced Michigan in the 2022 Big Ten championship game, received offensive signals from Ohio State and defensive signals from Rutgers, according to sources.
Michigan beat Rutgers 52-17 on Nov. 5 and beat Ohio State 45-23 on Nov. 26, a game that clinched the East Division for the Wolverines.
A Big Ten source said the league has forwarded any information to the NCAA for possible follow-up. It's unknown whether the signal sharing between league teams violates the Big Ten's sportsmanship policy or any NCAA rules.