McLaren has shared reserves with Mercedes since the start of the 2021 season instead of having its own dedicated driver in the role, making Stoffel Vandoorne and Nyck de Vries their primary two options if required. Ex-Force India driver and Sky F1 pundit Paul di Resta has also been a further back-up if required.
But Alpine has announced that Piastri has now also joined the pool of drivers available to McLaren if required.
