Lewis Hamilton's first day of testing for Mercedes has been cut short due to illness.
The 2014 world champion was in the car on Thursday morning but completed just 11 laps in the opening two hours before the team announced he was not well enough to continue.
Reserve driver Pascal Wehrlein - who was already driving for Force India - is taking over the W05 for the rest of the opening day. Wehrlein had been scheduled to drive for Force India on both Thursday and Sunday at Barcelona. Force India is likely to put Sergio Perez back in the VJM07, with the Mexican already at the Circuit de Catalunya.
Hamilton is supposed to drive for Mercedes again on Saturday, with Nico Rosberg in the car on days two and four.
Follow live coverage of the second test here.
Click here for the gallery from day one of the second test
Keep up to date with all the F1 news via Facebook and Twitter
Kimi Antonelli may be leading the Formula 1 world championship, but the young Italian is…
The Nürburgring’s Nordschleifel has claimed many a victim, but at a recent NLS round, Max…
It's been 58 years since the tragic death of Jim Clark on a damp and…
Williams team principal James Vowles isn’t hiding the Grove-based outfit’s current struggles, but he insists…
Sky F1’s Martin Brundle has raised a provocative question at the heart of Formula 1’s…
The modern Formula 1 battlefield isn’t just about bravery into Turn 1 anymore – it’s…