On the run towards Turn 1, Juncos Hollinger Racing driver Grosjean was hit by Chip Ganassi Racing’s Scott Dixon – who had already brushed wheels with a fast-starting Colton Herta (Andretti Global) as the race went green.
The nose-to-tail contact with Dixon sent Grosjean spinning out of control through the dust towards the apex of the first corner.
He rejoined the track and slammed into the side of Rinus VeeKay’s Ed Carpenter Racing car, which connected with Christian Lundgaard’s Rahal Letterman Lanigan Racing entry.
Team Penske’s Will Power dropped to last place in the melee, having taken avoiding action in the run-off area.
On his team radio, Grosjean ranted: “F**k, who did that? Who the f**k could not brake?!”
“I got hit under braking, really, really badly at the back and then the car spun,” Grosjean told NBC.
“Who is going to pay for the damage? We come here with no points on the line, we do nothing wrong and the car is completely smashed.”
After watching a replay from an on-board camera, he responded: “What is that? It's not what I signed [up] to IndyCar for.”
Source: Autosport