It is the second operation the player has undergone on his right knee this year, having undergone a procedure to remove the meniscus in January.
With Villarreal lying in only 13th in La Liga the timing could not be much worse for the Spanish club and although Marco Ruben will return shortly, Giuseppe Rossi is the only recognised striker available to Juan Carlos Garrido currently.
It is also a massive blow to the ‘Yellow Submarine’s chances of Champions League progression, having already lost their two group games to date and now they will be further deprived of a star name.