IndyCar said driver Felix Rosenqvist was evaluated at a hospital and is set to be released after a big crash on the first lap of Sunday's race at Pocono.
Takuma Sato triggered the frightening crash when he tried to dart through an opening on a three-wide move in Turn Two and took out Ryan Hunter-Reay, James Hinchcliffe, Rosenqvist and Alexander Rossi.
Rosenqvist's car dragged on its rear wheels against the wall before settling back on the track. IndyCar tweeted that he had been sent to a local trauma center for further evaluation with non-life-threatening injuries.