On the first lap of Race 1 Newgarden's No. 67 Hartman Oil Dallara/Honda/Firestone machine was hit from behind in an incident involving six cars.
Historically, the streets of Toronto have been good to the Briton.
Josef Newgarden: “Iowa is a very physical race...”
Honda first, Castroneves' Chevrolet is second
New brands could join Chevrolet and Honda, but not before 2016
Bourdais on probation for rest of season
Will Power wins his second race of the 2014 IndyCar season.
"The car is spectacular – even brushing the wall a little bit, Montoya style, it was great, man."
IndyCar has handed down some penalties following the Indianapolis 500.
UPDATED -- The Double Outlaw completes the first part of his Indy/Charlotte challenge "very satisfied with the sixth place"
After Indy 500 qualifying, Busch settles in for double duty
Ed Carpenter knocked James Hinchcliffe off the top spot and put his car on pole for the second year in succession at Indianapolis.
Andretti Autosport led the way at Indianapolis during the third day of practice, which was cut short by heavy rain.
Team Penske led the way in the opening practice session for the 2014 Indianapolis 500.
Mikhail Aleshin is preparing for what will be his first Indianapolis 500.