McLaren has confirmed that Jenson Button will be fitted with new power unit components that will force a drive-through penalty in the Canadian Grand Prix.
Although Button tweeted on Saturday night that he expected a drive-through, there was no confirmation from McLaren or Honda about exactly what was being changed on his car.
Button had stopped in the final practice session with an ERS-related failure, with caused knock-on problems for other areas of the engine. He was subsequently unable to take part in qualifying.
On Sunday morning, McLaren clarified that Button was being fitted with a new MGU-H and turbo – which are the fifth units to have been used this season.
That means he must take a drive-through penalty in the race, the Brit unable to take a regulation grid penalty because he is already starting from 20th and last position.
McLaren will decide shortly before the grand prix starts whether or not Button will start from the back of the grid or from the pit lane.