Carlos Sainz failed to make the start of Sunday's Belgian Formula One Grand Prix after his McLaren was sidelined by an exhaust failure on its way to the grid.
The Spaniard, replacing Sebastian Vettel at Ferrari next year, was set to line up seventh.
Renault-powered McLaren, fourth in the overall standings one point behind Racing Point and one ahead of Ferrari, will now have only one car in the race.
Their hopes rest on Briton Lando Norris who starts 10th.
(Reporting by Abhishek Takle; editing by Ed Osmond)
