Al Jefferson of the Minnesota Timberwolves was arrested this morning on a charge of fourth degree driving while impaired.

Jefferson was arrested at 1:08 AM by the State Patrol and booked into Hennepin County Jail shorty around an hour later. He was released at 3:19 AM, according to jail records.

Jefferson was initially pulled over for speeding, cops tell TMZ, and field sobriety and blood tests were taken.

He is due back in court on April 23.