Kimi Raikkonen has been forced out of Saturday's running at Barcelona due to suspected food poisoning.
The Finn was scheduled to run on the final two days of the last pre-season test, however, fell ill early Saturday morning.
That left the team without a race driver at the start of play as Romain Grosjean had returned home on Friday night at the conclusion of his two days.
It was therefore left to test driver Davide Valsecchi to take the driving duties on Saturday morning.
Grosjean, though, is reportedly on his way back to the track where the team hopes he will be in action this afternoon.