Pete Thamel gave an update on the Big Ten’s investigation into Michigan’s sign-stealing scandal on Friday evening.

Thamel said potential of the Big Ten punishing Michigan under the sportsmanship clause of its bylaws “continues to pick up steam.” Thamel also shared some reporting on what the “most realistic” punishment would be for Michigan from the Big Ten.

“The most realistic punishment on the table is some type of suspension for Jim Harbaugh,” Thamel said. “When that would come, and it would not be before the Purdue game, and how long [the suspension] is, are some of the details that [decided] by the Big Ten. Or, if they decide to wait until the NCAA investigation finishes. This is a rare investigation that’s playing out in real time. And the Big Ten, including by engaging with the NCAA this week, which is a hugely important step, is showing signs that there will be some type of action against Michigan.”

Here’s video of Thamel’s reporting on ESPN on Friday night:

Connor Stalions, the Michigan analyst who is at the center of the investigation from the NCAA, was officially fired on Friday evening according to multiple reports. Stalions was previously suspended with pay during the investigation.

Michigan is set to host Purdue on Saturday at 7:30 p.m. ET.