Sauber has confirmed its driver schedule for the second pre-season test at the Circuit de Catalunya in Barcelona.
After an encouraging first test at Jerez where Felipe Nasr topped the times on day three and Sauber was second on the other three days, the team heads to Barcelona optimistic of further progress.
Sauber has opted to retain its schedule of running one driver on the first and last days and the other on the middle two, reversing its line-up from the first test. That means Nasr will drive on the opening day before Marcus Ericsson takes over for days two and three, with the Swede handing the car back to Nasr for the final day.
The schedule means Ferrari young driver Raffaele Marciello will have to wait for his first taste of the C34, with the Sauber reserve having had a seat fit at the team's headquarters last week.
Click here to see the full gallery of the first Sauber C34 images