Wichita State Shockers head coach Gregg Marshall is making negative headlines following the revelation of his violent ways. According to a tell-all report, Marshall once punched one of his own players during practice, and former Shocker and now a current member of the Toronto Raptors, Fred VanVleet, forced Marshall to apologize.

Jeff Goodman of Stadium was able to talk to a number of eyewitnesses to the alleged incident, with one former assistant coach providing this insight as to Marhsall’s unprofessional behavior:

“He’s a maniac, a bully,” said the unnamed assistant. “He disrespects people, brings up personal stuff, family, girlfriends.”

According to the report, VanVleet, who in 2015 served as the the Shockers’ leader on and off the court, threatened a team boycott if Marshall did not apologize.

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It was Shaq Morris who was on the receiving end of the punch, and he narrated in his own words what happened next:

“He comes down in the film room and says, ‘First off, I just want to apologize to you and he pointed at me,” Morris relayed. “Then he said, “We good? We good? We good? All right, let’s move on.”

As it turns out, that was far from the only time Marshall had gotten violent with his team. Witnesses also attest to the Wichita State coach choking one of his assistants, Kyle Lindsted, after the two had a misunderstanding.

The accusations have now snowballed, and it appears that Marshall’s job could be on the line.