Who's driving when in Formula 1 pre-season testing week two

Traditionally, Ferrari gives its drivers full days in the car during pre-season testing - with one day of split duties last year the only exception to that policy since the V6 turbo-hybrid era began in 2014.

But the team has opted to split the running of Vettel and Leclerc for the second four-day test in Spain this week.

Leclerc will kick off the test on Tuesday morning before handing over to Vettel for the afternoon, and they will alternate who starts each day for the rest of the test.

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Mercedes and Renault will continue their strategy of splitting running across their race drivers, with Lewis Hamilton and Nico Hulkenberg expect to hit the track first for their respective teams on Tuesday.

Williams faces a crunch week after its delayed start to testing, and will alternate its drivers instead of splitting their days.

George Russell gets back behind the wheel on day one before Robert Kubica takes over on Wednesday.

Test two provisional line-up

* Expected, but subject to change