The Big Ten suspended Michigan head coach Jim Harbaugh from being on the sideline during games through the remainder of the regular season amid the NCAA's investigation into allegations of sign stealing by the football program.

ESPN's Pete Thamel first reported the ban. Harbaugh will still be allowed to coach during the week.

While Harbaugh has yet to be disciplined by the NCAA, Thamel reported on Nov. 4 the most likely outcome of the NCAA's investigation would be a suspension.

Pete Thamel @PeteThamel

Latest on the Big Ten's potential punishment of Michigan in the sign stealing investigation. Expect clarity in the upcoming days, with a suspension of Jim Harbaugh looming as the most likely punishment. From ⁦<a href="">@CollegeGameDay</a>⁩. <a href="">

Michigan released a statement in response to the punishment, per Nicole Auerbach of The Athletic:

Nicole Auerbach @NicoleAuerbach

Statement from the University of Michigan: <a href="">

Friday's ban marks the second time Harbaugh has been suspended in 2023. The university issued a self-imposed three-game ban to start the season stemming from alleged recruiting violations that occurred during a COVID-19 dead period.

Per an Oct. 19 report from Dan Wetzel and Ross Dellenger of Yahoo Sports, the Wolverines were being investigated for allegedly violating NCAA rules that prohibit in-person scouting of future opponents.

Thamel and Mark Schlabach noted Connor Stalions, a low-level staffer for Michigan, was at the center of the investigation and had purchased tickets under his own name to more than 30 games at 11 different Big Ten schools over the past three seasons.

Harbaugh said in a statement about the investigation that he had no knowledge of illegal sign stealing on the staff but that he would fully cooperate with the NCAA.

Zach Shaw @_ZachShaw

Jim Harbaugh has released a statement saying that, while cooperative with the investigating, it's not a practice he claims to be aware of. <a href="">

The University of Michigan announced on Nov. 3 that Stalions resigned from his position after reportedly refusing to cooperate with any internal or external investigations.

Nicole Auerbach @NicoleAuerbach

Connor Stalions refused to cooperate with any internal or external investigations or discussions, source said. <a href="">

Amid the investigation, Andrew Beaton and Rachel Bachman of the Wall Street Journal reported the school rescinded a contract offer to Harbaugh that would have made him the highest-paid coach in the Big Ten.

However, per Michigan insider John U. Bacon, school administrators are "proceeding with Harbaugh's contract." He previously signed a five-year deal in February 2022 that tied him to the Wolverines through the 2026 season.

Amid speculation the Big Ten was going to hand down punishment against the program, Wetzel and Dellenger reported Michigan issued a 10-page report to the conference objecting to any discipline and included documents and pictures of its own offensive and defensive signals allegedly being stolen by other Big Ten teams.

Dan Wetzel @DanWetzel

One point Michigan makes in its letter: The Big Ten is acting prematurely here. The NCAA has not yet been able to provide significant evidence, according to Michigan, and the Big Ten is relying on "summaries and descriptions of evidence."<br><br>Michigan argues that the Big Ten's…

The discipline comes as the Wolverines are preparing to play Penn Stateon Saturday in a matchup of two Top 10 teams.

Michigan (9-0) is currently No. 3 in the College Football Playoff Top 25 rankings. The Wolverines have won 22 of their last 23 games dating back to the start of the 2022 season.