Romain Grosjean has been excluded from Saturday's GP2 race after his car failed post-race scrutineering.
The DAMS driver lost the championship lead when he could manage no better than fourth in the race, but his title charge has been dented even further now he has lost the five points he scored.
To compound the punishment, his exclusion from the results means he will start from the back of the grid for race two on Sunday.
Grosjean's penalty promotes Fabio Leimer to eighth in the race one results, therefore giving the Rapax driver pole position for Sunday's reversed grid race.
Leimer had worked his way up to ninth from the back of the grid in race one, and his pace at the end on fresh tires suggested that he would have finished in the points if the race had been one lap longer.
Esteban Gutierrez has also been penalized, after he was deemed at fault for a collision with Michael Herck in the race. The Mexican has been given a 10-place grid penalty, but as he retired from race one that penalty will simply drop him to the back of the grid with Grosjean.