INDIANAPOLIS -- Andretti Autosport will test two developmental drivers Thursday at Palm Beach International Raceway.
James Davison of Australia and Colombian driver Gustavo Yacaman will both test the No. 27 IndyCar.
The test is designed to give both drivers seat time in an IndyCar.
There was no indication the test is a tryout for a spot in Andretti's IndyCar lineup.
Andretti has not said who will replace Wheldon.