A host of sides are thought to be chasing Mata, with the likes of Arsenal, Tottenham, Liverpool and Manchester City all credited with an interest.
The 23-year-old has claimed he is happy to stay at Valencia, despite the near constant speculation over his future at La Mestalla.
Valencia coach Unai Emery admitted earlier this month they may sell if a big team comes in with an attractive offer because of the club's financial plight.
However, Llorente is adamant the skilful attacker is not for sale at any price.
"The decision is clear and money will not change our position," Llorente told Superdeporte.
"Valencia will not sell to any club that wants to buy Mata."