Marussia has announced Will Stevens as part of its Formula 1 reserve roster, although plans to run him in Japanese Grand Prix practice have fallen through at the last minute.
The 23-year-old Briton, who was previously part of the Caterham team's junior driver academy and had twice tested with the squad, is with Marussia at Suzuka this weekend.
It had been hoped that Stevens could have his first run in the Marussia during FP1, but industrial action in Germany meant that completed documentation could not be lodged with F1's contract recognition board in time.
Stevens will still be given further free practice outings over the remainder of the year.
Marussia team boss John Booth said: "Will is a driver we have been watching since he arrived in Formula Renault.
"We have admired his ability to learn quickly and compete in the thick of the action, so we are very pleased to add him to our roster of official reserve drivers, which is now looking very strong indeed."
Stevens has spent this season racing in Formula Renault 3.5, winning the opening round at Monza.