York on Friday told the court that he made a terrible mistake and wanted to apologize.
The 20-year-old pleaded guilty last month to one count of aggravated assault and one count of assault and battery. Police said York broke a man's jaw with a punch and pushed another man just after 2 a.m. July 18 outside a bar in Ann Arbor.
District Judge Elizabeth Pollard Hines also ordered York to pay the man's medical bills.
York, who appeared in one game as a reserve wide receiver as a freshman last season, enrolled at Toledo after being kicked off the Michigan team.