Australian driver Will Power did not suffer a concussion before the IndyCar season-opening race at St Petersburg, Florida, and was likely suffering only from an inner-ear infection.
Power was a late scratch from last Monday's race when symptoms he was displaying were indicative of a concussion. He crashed two days earlier in practice, and was sick after winning pole position on Sunday.
He's since been cleared to resume racing, with IndyCar's next event on March 27 in Phoenix.
Motorsport: Power given all clear to race
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