The British driver, who has been ‘placed’ at Williams by Mercedes who supply power units to the team, said he would speak to Wolff if he had any reason to worry.
But it appears Mercedes will not offer any help to Russell after Wolff revealed: “We touched base [with Williams] about George but at the end, it’s their call. At the end, it is Williams’ decision.
“We all know about George’s capabilities. He is a star of the future and remains unbeaten by his team-mates in Formula One. Sometimes he is able to show highlights in a car that is not competitive at the moment.
“I think he is a great team asset. But then obviously there is a financial reality that I cannot judge at all and it’s absolutely the discretion of the new owners and Simon to decide what they want to do going forward.”
Russell, along with Canadian team-mate Nicolas Latifi, extended his contract into 2021 in July prior to the team’s sale, but it is not clear as to where he stands if the new owners decide they want to seek a driver with greater financial support.
Perez, released by Racing Point - which is to become Aston Martin next year - in favour of Sebastian Vettel, brings with him significant backing from Mexico.
Asked about his future, this week Perez said: “I haven’t signed anything [but] the season is coming to an end, so it is getting close, and I should be in a position to say something really soon, I think.
“There are not many teams out there, actually very few. It is not like a number. It’s choosing something with a good project, something that really puts me into that project - I am willing to be in a project.”
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