Kang-in Lee is a step away from Valencia this year.
The South Korea midfielder has a contract to 2022 and so far refused to consider negotiations over a new deal.
Lee's camp has fielded an approach from VCF's board, but their offer fell well short of expectations.
There's now a belief Valencia will sell either this window or over the summer as his contract ticks down.
There had been hope of Lee succeeding Ferran Torres as the face of the club, but the breakdown over new contract talks is now set to see him sold.