U-M warns Big Ten about punishment precedent

Michigan has responded to the Big Ten's notice of disciplinary action, and a source told ESPN that likely penalties would focus on coach Jim Harbaugh.

Sources: U-M says Big Ten teams shared its signs

Michigan has documents it believes show Rutgers, Ohio State and Purdue engaged in communication about the Wolverines' signals in 2022 and has forwarded the documents to the Big Ten, sources told ESPN.