Former Toro Rosso driver Jaime Alguersuari's racing career has been put on hold due to medical reasons.
The Spaniard was contracted by Virgin Racing for the inaugural Formula E campaign, but he missed the season finale in London in June as his licence was temporarily suspended by the FIA after he fainted during the Moscow ePrix.
He has undergone a series of medical tests, but he is still awaiting the results and has now confirmed that he won't compete in the 2015/16 Formula E season.
"During the month of July I underwent several tests for which there has not been a medical resolution and I am still waiting for the final diagnosis," Alguersuari, who drove for Toro Rosso from 2009 until 2011, said in a statement.
"For this reason I need to announce that, unfortunately, I will not be able to take part in the FIA Formula E Championship for the 2015/16 season with my team DS Virgin Racing.
"I want to wish good luck to the team in the new championship and thank everyone for their support.
"In September I will announce my future plans."