Illinois has indefinitely suspended defensive lineman Michael Buchanan after he was arrested on suspicion of drunken driving over the weekend.

Champaign County State's Attorney Julia Rietz said Tuesday that Illinois State Police arrested the 19-year-old sophomore at about 2:25 Sunday morning in Champaign.

He faces a preliminary charge of driving under the influence of alcohol and consumption of alcohol by a minor. Rietz says he is out on bond.

Coach Ron Zook declined to discuss further details about Buchanan's arrest or his suspension.

Buchanan played in Saturday's loss to Missouri after playing as a freshman last season. The Illini will host Southern Illinois on Saturday.