Robert Kubica will not take part in this weekend’s US Grand Prix and his place will be taken by BMW Sauber’s official reserve driver Sebastian Vettel.
Kubica underwent a medical examination at Indianapolis on Thursday following his massive crash in Montreal last Sunday.
Although he showed no ill effects, the FIA’s medical delegate and the race's director of medical services decided to rest him for the weekend on precautionary grounds.
It was felt that the risks of another serious accident and a second concussion in the space of a week were too high, especially given the history of high-speed impacts with the wall at Indy’s banked final corner.
Kubica miraculously escaped serious injury in his Montreal accident and was released from hospital on Monday.
He told a news conference on Thursday afternoon that he felt “100 percent okay, no headache, nothing – like brand new” but accepted the need to defer to the doctors’ judgement on whether he would be fit to race.
Vettel, who was stunningly impressive on Friday practice outings last year, has been on standby since Canada and will make his grand prix race debut on Sunday aged 19.
BMW will review the situation ahead of the French GP on July 1, but Kubica is expected to return to the cockpit provided he passes further medical checks at Magny-Cours.