Ever Banega's agent plans to meet with Valencia's directors in the coming days as "several clubs" have expressed an interest in signing the Argentine.
The 25-year-old midfielder has been at Mestalla since 2008 and stated before the season began that he was determined to repay Los Che for standing by him during some difficult times off the field in recent seasons.
However, Banega's representative, Marcelo Simonian, has now revealed that his client could move elsewhere as early as January.
"I can only tell you that we are already talking with several clubs in relation to the next window," the agent told NapoliCalcioLive.com.
"In the next few days I will be travelling to present all the options to Valencia."
Valencia signed Banega from Boca Juniors for a reported fee of €20 million (£16.9m) but his time in Spain has been blighted by injuries and controversy.