Jenson Button will not take part in qualifying for the Canadian Grand Prix after his McLaren team confirmed his car will not be ready in time.
The Briton stopped out on track in the closing minutes of the final free practice session on Saturday morning with a mechanical problem.
After his car was returned to the pits, his team found that there was an ERS-related failure – which cannot be fixed in time.
McLaren’s acting CEO Jonathan Neale said: “Jenson went out and described an immediate loss of power. We could see on the data that something was very wrong on the energy-recovery system. We’d had a mechanical failure and unfortunately that’s put debris through the rest of the engine.
“Hugely frustrating for Jenson, because there isn’t enough time to get that car out. It’s massively disappointing for the whole team.”
Despite not taking part in qualifying, Button will be allowed to start the race because his performances in practice have been fast enough.
However, whether he starts from the pit lane or grid will depend on exactly what changes his McLaren team need to make to his Honda power unit.