Alexander Rossi has parted company with Caterham, putting an end to plans for him to take part in FP1 in Austin again this year.
Rossi has also left the Caterham GP2 team, although it is does not come under the same new ownership as the F1 outfit. Rossi last drove the F1 car in FP1 in Canada in June.
Speaking on Twitter, he said: “It’s been an emotional couple of years with Caterham F1. The highlight being driving with them in Austin last year. Now it’s time to move on.”