BALTIMORE - Olympic champion swimmer Michael Phelps is set for trial on drunken driving and other charges.

The 18-time gold medallist was arrested on Sept. 30. Documents show that the 29-year-old was leaving the Horseshoe Casino when he was pulled over for speeding and crossing the double yellow line on a highway. Police say Phelps registered a .14 per cent on a blood-alcohol test. The legal limit to drive is .08 per cent in Maryland.

If convicted Friday, Phelps faces up to a year in jail.