Santiago Canizares has secured his position as first choice keeper for new coach Rafael Benitez, which has seen Palop's chances remain limited. The Valencian manager is a strict disciplinarian and was rumoured to have dropped Kily Gonzalez for his petulant display following his substitution.
Gonzalez was left out of the Uefa Cup game against Celtic and Palop is likely to find Benitez more than willing to let him go on his way.
Palop said: "I feel like a doll, I want to go in December.
"They have cut my legs off twice and I will not allow it to happen a third time."
The player is fed up with having to constantly prove himself to the Che side, having felt that he has already done so.
"I believe I have completed this mission (to prove himself) fully. It is an unbearable situation and I want to leave Valencia in December."
According to Palop, both Benitez and the Valencian hierarchy know of his desire as he demanded: "To be valued within the team and this is not so at this club.
"There is a good keeper in Valencia in Canizares and the other is a doll (speaking about himself)."
However, Palop admitted it would be difficult for him to leave in December as clubs will be put off by his 1,000 million pesetas (£3.7 million) buy-out clause and having played five times for Valencia, he will not be able to play for another Spanish side.
