Lewis Hamilton will appear before a Paris appeal court tonight as he looks to get his victory at the Belgian Grand Prix reinstated.
Stewards handed Hamilton a 25-second penalty, demoting him to third behind rival Felipe Massa, claiming he gained an advantage by cutting a chicane.
The decision cost the 23-year-old four world championship points, a penalty his team will argue was too harsh.
McLaren bosses will stand alongside Hamilton at the hearing before he flies to Singapore for formula one's first ever night race next weekend.
If successful, the Englishman will win back the four points he lost as a result of slipping to third and, with Massa losing two points on being moved back to second, Hamilton would see his championship lead extended to seven points with four races remaining.
The verdict is due to be released on Wednesday after the three judges have decided whether or not McLaren's plea is justified.