The 19-year-old Rees was arrested early Thursday on charges of resisting law enforcement, battery to law enforcement, minor consumption and public intoxication, according to St. Joseph County Police Sgt. Bill Redman.
City police officers arrested Rees and Notre Dame linebacker Carlo Calabrese, Redman said, adding that he didn't know details of the incident or which charge against Rees was a felony.
Calabrese was arrested on a misdemeanor charge of disorderly conduct and released on bond.
Redman says Rees of Lake Forest, Ill., is being held without bond until the county prosecutor's office decides on formal charges.
Rees started 12 of the Irish’s 13 games last season and is currently battling three others for the starting spot.