Belgian Grand Prix grid set as Sainz and Vandoorne change engines

Both drivers were knocked out of the first part of qualifying on Saturday so were due to start near the back anyway, and have taken the opportunity to get a complete new set of engine components.

Renault driver Sainz had hinted at a possible pitlane start, but the only change other than his new engine - which drops him to 19th - is a replacement right sidepod.

Vandoorne, who qualified slowest as he fights for his McLaren future, has a new seat as well as his engine changes and will line up last.

Both Sainz and Vandoorne have taken fresh versions of Renault's Spec B engine, as its Spec C will not be available until next weekend's Italian Grand Prix.

Their penalties promote Mercedes' Valtteri Bottas to 17th and the other Renault of Nico Hulkenberg to 18th, after both drivers had their own engine changes announced earlier in the weekend.

The FIA has also confirmed a number of other changes that do not result in amendments to the grid.

Qualifying star Esteban Ocon will have a replacement front wing, but will be able to start from third because it is the same specification as before.

Sauber has made changes to both its cars after different problems in qualifying.

Charles Leclerc has new front brake friction material, while Marcus Ericsson's Ferrari engine has a new spark plug and changes around that - indicating it dropped a cylinder on Saturday.

Final Belgian GP starting grid