Phoenix ? Mike Tyson reported to jail Tuesday, an open-air facility near a dog pound and trash dump where he was to serve a one-day sentence for a DUI conviction.

The former heavyweight champion will be held in a secluded part of Tent City, apart from the 1,500 other inmates. Sheriff Joe Arpaio, who runs the jail, said Tyson still must wear the jail-issue pink underwear and black-and-white striped jumpsuit.

Besides the day in jail, Tyson was sentenced to three years’ probation. He also must perform 360 hours of community service and undergo drug testing.

The 41-year-old boxer pleaded guilty Sept. 24 to one count of felony cocaine possession and one misdemeanor count of driving under the influence. The charges stem from his arrest last year after leaving a Scottsdale club.

Officers stopped Tyson when they spotted him driving erratically. Police said they saw Tyson brush a white powder off his dashboard, and they found baggies of cocaine in Tyson’s pockets and in his car.

Tyson faced a maximum sentence of four years and three months in prison. Prosecutors recommended a one-year sentence, but the judge said the boxer had tried to atone.

During a sentencing hearing Monday, judge Helene Abrams said she was impressed with the boxer’s attempts to complete his GED and how he voluntarily sought treatment for drug addiction.

“Sobriety is a lifetime job,” Abrams told Tyson.