Australian driver Will Power will rejoin Penske Racing for the July 12 event in Toronto.
Power will drive five more races this season.
He opened the season with Penske's team as a temporary replacement for Helio Castroneves. When Castroneves was acquitted of U.S. tax evasion charges in April, he reclaimed his seat, and Penske kept Power on the team for two more races _ Long Beach and the Indianapolis 500.
A person familiar with the deal told The Associated Press on Thursday that Power also will race in Edmonton on July 26, Kentucky on Aug. 1, Sonoma on Aug. 23 and Miami on Oct. 10. The person requested anonymity because the dates had yet to be announced.
