re: Big Ten hands down punishment: Jim Harbaugh not allowed on the sidelines during games

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Sources to @TomVH and me: B1G received documents from Michigan that U-M says show Ohio State, Rutgers and Purdue communicated about U-M's signals in 2022. Docs show Purdue, which faced U-M in B1G champ game, got offense signals from Ohio St + D signals from Rutgers, per sources.

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A Big Ten source told ESPN that the materials have been passed along to the NCAA. As
@Johnubacon reported, unknown whether the signal-sharing between league teams violates the Big Ten's sportsmanship policy, but could merit follow-up.

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A source told ESPN that the information the league received isn't expected to impact how the Big Ten proceeds with Michigan and potential discipline under the sportsmanship policy, which could come later this week.

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