The gifted midfielder was recently linked with a move to the Santiago Bernabeu, but he is unsure whether they are willing to meet his current club's demands
A recent report suggested that the Blancos are keen to add Valero to their squad at the end of the season, yet the midfielder doubts that a transfer will materialise this summer.
"People are now talking about a move to Madrid, and previously there was talk about Barcelona. These kinds of things flatter me, and make me happy and satisfied," Valero was quoted as saying by AS.
"There's nothing concrete though. I do not believe that Madrid will pay millions for me. They let me go for free not so long ago, so I can't see them paying a big transfer fee for me now."
The 27-year-old midfielder has a contract with Villarreal until the summer of 2015.