Sauber and Toro Rosso announce test line-ups

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.

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