The pair have been on their fourth power unit and came in to the Red Bull Ring weekend aware of the possibility of needing a fifth engine.

Following engineering meetings at the circuit, and the fact that the team is set for a tough time on the power track, it has now been decided that both drivers will take new engines.

It means Ricciardo and Kvyat are set to start from the back of the grid – but should at least be able to look forward to not worrying about penalties for the next few races.

McLaren change too

Red Bull is not the only team taking an engine-change penalty in Austria.

McLaren has decided that Fernando Alonso will take a fifth engine – while team-mate Jenson Button may also use one as well.

A final decision on the Button situation will be made on Friday.

The line-up at the back of the grid will be determined by a combination of final qualifying times and the order in which the FIA was informed of the engine-change decision.