Arsenal target Shkodran Mustafi will not be leaving Valencia after coach Pako Ayestaran ruled out a sale.
Mustafi was named among the substitutes in Valencia's season-opening 4-2 defeat at home to Las Palmas in LaLiga on Monday.
The 24-year-old Germany international defender came off the bench at half-time but was unable to prevent defeat to Las Palmas, who led 3-2 heading into the interval.
Asked about Mustafi's future amid strong links to the Premier League, Ayestaran told reporters: "Mustafi is not for sale and he will stay at VCF.
"The market is open and there are still possibilities."
Ayestaran also expects forward Paco Alcacer, who has been linked with Barcelona, to stay.
"With Alcacer I can be as firm as with Mustafi, [club president] Lay Hoon already said it," he added.
"The president has said in public that Alcacer and Mustafi are not for sale and I have to believe her."