Former Ohio State defensive back Marcus Williamson is on a Twitter rampage Saturday.

As the Buckeyes battle Utah in what has been a highly entertaining Rose Bowl, Williamson has attacked college fans and coaches with reckless abandon.

First it was the fans who drew his ire, as he tweeted, “Now that im a fan I gotta say… u fans kno nothing and have some of THE worst football IQ ever.”

He then turned his attention to college coaches with the following tweets, the first of which was a follow up to his attack on fans.

Up next was a warning for potential recruits about the “business” of college football.

Williamson opted out of playing in the Rose Bowl after recording 24 tackles during the regular season for the Buckeyes.

He claims he’s now “retired” from football and when confronted by fans about not playing in the bowl game he also took a shot at former NFL star Vontae Davis.

As for what’s going on during the actual game, Utah and Ohio State are tied at 38 in the 4th quarter.