INDIANAPOLIS — Rain has halted rookie practice for the Indianapolis 500.

Only three drivers made it onto the track for about 45 minutes Wednesday morning before rain hit the Indianapolis Motor Speedway.

Two of the drivers, Nelson Philippe and Stanton Barrett, still need to complete their mandatory rookie tests to be eligible for the start of qualifications on Saturday. Rookies Mike Conway, Robert Doornbos, Alex Tagliani and Raphael Matos completed their tests Tuesday.

The third on the track Wednesday was veteran Alex Lloyd, who was allowed to practice with the rookies because he has not driven a race yet this season.

Philippe, a 22-year-old Frenchman, was the fastest in the abbreviated session at 217.668 mph.