York was charged with one count of aggravated assault and two counts of assault or assault and battery earlier this month. Police in Ann Arbor released a video that they say shows York punching a man outside a bar in mid-July.
According to a police report acquired by The Ann Arbor News through the Freedom of Information Act, the victim in the case lost a tooth and broke his jaw in three places, "requiring it to be wired shut and necessitating the temporary use of a breathing tube."
Michigan head coach Brady Hoke released a statement announcing York's dismissal.
York was suspended indefinitely before the start of fall camp.
York is a native of Harper Woods, Mich., just east of Detroit. He played in only one game last season.
- Dan Gartland