Marussia has named McLaren protege Kevin Magnussen as a potential race driver for 2014.
It is already known that the Ferrari-linked French rookie Jules Bianchi is staying with the team beyond this season.
But a few days ago, his 2013 teammate Max Chilton admitted his own future is not yet secure.
“I feel I’m showing I deserve a seat for next year,” the Briton, who brings substantial backing to Marussia, is quoted by the Independent newspaper.
“I admit, at times, click here for more