Palou had no radio comms for “sketchy” last lap near miss with team-mate

Palou had a healthy 5s lead over Team Penske’s Josef Newgarden going on to the final lap but came across Armstrong on the approach to The Kink – one of the fastest and most fearsome corners in American motorsports.

Armstrong – who previously tumbled down the order due to a strategy error – had gone off at the Carousel and rejoined directly in front of the race leader.