Mercedes will again split the running on Day Two of the first pre-season in Spain while there is a Sauber debut for Antonio Giovinazzi.
As with Monday's first day of testing, Lewis Hamilton and Valtteri Bottas will divide the driving duties on Day Two, this time with the Brit first up.
Max Verstappen and Kimi Raikkonen will be in action for Red Bull and Ferrari respectively while Stoffel Vandoorne takes over from Fernando Alonso on what McLaren-Honda are hoping will be a more fruitful day.
Formula 1 will Lance Stroll in action in an F1 car for the first time as the Williams rookie replaces Felipe Massa behind the wheel of the FW40.
Meanwhile, there is a Sauber debut for Antonio Giovinazzi after Ferrari's third driver was called up to replace the injured Pascal Wehrlein for this season.
The full line-up…
Lewis Hamilton (morning), Valtteri Bottas (afternoon)
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