Sauber and Toro Rosso announce test line-ups

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Toro Rosso and Sauber have confirmed which days each their drivers will be taking part in during this week's official pre-season test.

The test takes place at the Circuit de Barcelona-Catalunya and starts on Monday February 26. All teams will be present for a total four-days of on-track activity.

Toro Rosso's 2018 driver line-up consisting of Brendon Hartley and Pierre Gasly will be present on alternating days.

Hartley gets the honour of giving the STR13 its first shakedown. He'll be behind the wheel on Monday and Wednesday, with Gasly getting his chance on Tuesday and Thursday.

The team hadn't yet officially unveiled its 2018 challenger. That will happen on Monday morning in the pit lane at Barcelona, before the track opens for the start of testing.

Alfa Romeo Sauber F1 Team presents its 2018 charger!

In contrast, Sauber has already held its official car launch and shown off the new Alfa Romeo livery it will be sporting for the new season.

Marcus Ericsson remains with the team for a fourth season. He will be trying out his new company car on Monday and Wednesday.

His new rookie team mate, Formula 2 champion Charles Leclerc, will be in charge of things on Tuesday and Thursday.

Yet to announce their plans for this week's test are Mercedes, Ferrari and Renault.

There will be full coverage of the pre-season tests right here on F1i.

Monday - Feb 26	Tuesday - Feb 27	Wednesday - Feb 28	Thursday - Mar 1
Mercedes
TBC	TBC	TBC	TBC
Ferrari
TBC	TBC	TBC	TBC
Red Bull
Daniel Ricciardo	Max Verstappen	Daniel Ricciardo	Max Verstappen
Force India
Nikita Mazepin	Esteban Ocon	Sergio Perez	Nicholas Latifi
Williams
Lance Stroll/ Sergey Sirotkin	Sergey Sirotkin/ Robert Kubica	Lance Stroll/ Robert Kubica	Sergey Sirotkin/ Lance Stroll
Renault
TBC	TBC	TBC	TBC
Toro Rosso
Brendon Hartley	Pierre Gasly	Brendon Hartley	Pierre Gasly
Haas
Romain Grosjean	Kevin Magnussen	Romain Grosjean	Kevin Magnussen
McLaren
Fernando Alonso	Stoffel Vandoorne	Fernando Alonso	Stoffel Vandoorne
Sauber
Marcus Ericsson	Charles Leclerc	Marcus Ericsson	Charles Leclerc

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Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.