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Graham Rahal (15) races Josef Newgarden during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)

Felix Rosenqvist (10) leads a pack of cars during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)

Simon Pagenaud (22) battles Oliver Askew during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)

Josef Newgarden (1) races Zach Veach during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)

Will Power (12) battles teammate Josef Newgarden during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)

Scott Dixon (9) leads a pack of cars during Sunday's season-ending NTT IndyCar Series Firestone Grand Prix of St. Petersburg. (Al Steinberg photo)