However, Spain's Diario AS on Wednesday reported that Caterham chief Colin Kolles' 'plan B' was to run Merhi in Friday morning practice, before Lotterer takes over for the rest of the race weekend.

Andre Lotterer had originally planned to compete in this weekend's Italian Grand Prix, replacing Kamui Kobayashi once again. He has since reversed that decision.

Why? He cited that Colin Kolles planned to put Roberto Merhi in the car for FP1 on Friday, something Lotterer did not originally agree on. He explained that he is a rookie and needs all the track time he can get. Because of this call by Caterham, he's decided to give up the race seat.

It was expected Spanish rookie Roberto Merhi, would be in action this weekend for the Italian Grand Prix. Merhi has run into trouble with securing his F1 super license from the FIA.

Lotterer made his Formula One debut with Caterham in Belgium, easily qualifying ahead of full-time driver Marcus Ericsson. Unfortunately, he finished last after a lap one exit due to a complete loss of power.