Paul Tracy, the 2003 Champ Car World Series champion, has signed an agreement to join the Indy Car Series for one race, the Rexall Edmonton Indy event in August. Tracy will drive a third car for Vision Racing, with Walker Racing's crew pitting the car.

Since the dissolution of Forsythe/Pettit Racing after Champ Car's finale at Long Beach, Tracy has found himself out of work in open wheel. The Canadian superstar, 39, has been considering a move to the NASCAR Craftsman Truck Series with Germain Racing in 2009, but nothing has been set in stone on that front.

The Dallara-Honda will carry No. 22, the number Vision Racing used with Davey Hamilton at this year's Indianapolis 500. Subway will provide the financial backing.

Currently the deal is only for one race, but may be extended if sponsorship money and Tracy's salary demands allow. Tracy reportedly asked for less than half the $170,000 per race he received in Champ Car last season. It is unknown whether future races for the team, if a contract is signed, would be run under the banner of Vision Racing or Walker Racing.