Nolan Siegel, a driver for Arrow McLaren in the IndyCar series, was not medically cleared to participate in the race at Iowa Speedway following a single-car crash on Lap 248 that resulted in a mild concussion. Arrow McLaren initially decided not to field the No. 6 car in that race. Tony Kanaan, associated with the team, stated that Siegel would be reevaluated by the IndyCar medical team in Indianapolis on the Thursday following the incident to determine his readiness for the upcoming Toronto race. The team planned to select a potential substitute driver for the Toronto event within 24 hours of the decision, with Linus Lundqvist named as the standby driver. On July 17, 2025, Siegel was medically cleared to race and was en route to Toronto, while Lundqvist remained as the backup driver.
.@nolan_siegel has been cleared to race this weekend after suffering a mild concussion in a crash at @iowaspeedway #IndyCar https://t.co/h3D2PDC8qz
Nolan Siegel Cleared To Race; Linus Lundqvist Remains As Standby Driver @IndyCarOnFOX https://t.co/jo3WpEQJsf
Nolan Siegel (concussion) has been cleared to race this weekend and is en route to Toronto. Linus Lundqvist will be here as a standby driver.