Fresh from his double Indy Lights victory at Toronto last weekend, the 24-year-old will become the first Swede to drive an Indy car since 1998 IRL champion Kenny Brack contested the Indianapolis 500 in 2005.

"This is an incredible opportunity for me,” said Rosenqvist. “The Verizon IndyCar Series is the biggest and fastest racing series in America, and it’s every driver’s dream to be given a chance like this - and I intend to make the most of it.

"It’s especially thrilling to be doing this with Chip Ganassi Racing, a top team steeped in history that I grew up following on TV.

"Hopefully I can do a solid job and I’m sure this will be a truly unique experience.”

Rosenqvist currently lies seventh in the Indy Lights points standings, having also won at St. Petersburg in March prior to his Toronto wins, driving for Belardi Auto Racing.

He is also a reserve driver for Mercedes in the DTM, his commitments with the German marque forcing him to miss the Indy Lights rounds at Road America and Iowa.