Indianapolis 500 runner-up Marcus Ericsson was penalized to the rear of the 33-car field along with Andretti Global teammate Kyle Kirkwood on Monday after their cars were found to have unapproved modifications in the post-race inspection that could have helped their aerodynamic efficiency. Ericsson finished second to Alex Palou on Sunday when he was unable to make a winning pass in the closing laps. He now will be credited with a 31st-place finish while Kirkwood, who had finished sixth, has been relegated to 32nd. IndyCar said the modifications made by Andretti Global were to the Energy Management System covers provided by Dallara, the company that provides the chassis for the series. The rulebook states that those parts must be used as supplied. MORE: https://www.wthr.com/article/syndication/ott/indy-500/indy-500-runner-up-ericsson-teammate-kirkwood-penalized-to-rear-for-unapproved-car-modifications-indianapolis-indiana/531-86bd22dc-7571-4b21-8524-48e98a747f71