Mike Tyson was arrested early Friday on suspicion of driving under the influence and possession of cocaine after police stopped him shortly after he left a Scottsdale nightclub.
Sgt. Larry Hall said the boxer was stopped after his car almost struck a sheriff's vehicle while leaving the club at about 1:45 a.m.
"He showed signs of impairment and voluntarily submitted to field sobriety tests," said Hall, a member of the Buckeye Police Department who was working in the area as part of a holiday DUI task force.
Tyson was booked at a Maricopa County sheriff's jail and was expected to have an initial appearance before a judge later Friday to determine bail, Hall said.
Tyson, who shot to fame by knocking out Trevor Berbick in 1986 to become the youngest heavyweight champion in history at age 20, has had several run-ins with the law over the years, including serving prison time for rape. He most infamous incident was in the ring in 1997 when he bit Evander Holyfield's ear during a fight.
More recently, he makes a cameo appearance in Sylvester Stallone's new film, "Rocky Balboa," the sixth installment in the "Rocky" series.