Jean-Eric Vergne has revealed he will not be staying on in a reserve role at Ferrari for the 2017 season.
The Frenchman, who has previously raced for Toro Rosso, linked up with Ferrari as a test driver in 2015.
But GP2 runner-up Antonio Giovinazzi has now been installed as Ferrari's third driver.
"It was clear from the beginning [of the Ferrari role] that I would not continue as reserve anymore this season," said Vergne.
"I still have a lot of contact with Ferrari and good relationships there, but I'm not going to grands prix and filling the role I had."
Verge has now completely turned his attention to Formula E, where he took his first podium of the season last weekend in Buenos Aires.
Experience the full coverage of the FIA Formula One season throughout 2017 on FOX Sports Play, where you can watch LIVE races from angles unlike any other, highlights, interviews, behind the scenes and many more. Don’t miss it!