Giedo van der Garde and Sergey Sirotkin will both get behind the wheel of the Sauber C33 next week during and after the Bahrain Grand Prix.
Van de Garde will replace Esteban Gutierrez during first free practice in Bahrain – his first official outing since joining the Swiss team.
The Dutch driver will also take part in the first in-season test of 2014. He will drive on day two – the Wednesday after the race.
Russian driver Sirotkin meanwhile will drive on day one of the test in order to secure his super licence. That call-up suggests Sauber’s Russian investment deal might be back on.
