Valencia and Spain wigner David Silva is facing a race against time to avoid going under the knife.
The Canarian winger is due to endure an operation on his ankle on Sept. 15, although he is making a last-ditch attempt to avoid surgery.
Coach Unai Emery and Valencia's doctors agreed that an operation is probably the best course of action, but now Silva is willing to try a final period of rest to see if the problem clears up on its own.
Should Sunday evening see no improvement, though, he will go under the knife next Monday and thus be out of action until mid-December, denting Valencia's chances of starting the season in style.
Not only would he miss a dozen Liga games, but he'd also have to skip the bulk of Los Che's UEFA Cup group stage.
No matter what happens he will miss Spain's match against Armenia on Wednesday.