Pato was most recently on loan at Chelsea where he struggled to make the first-team, playing on just two occasions for the west London club.
However, it appears that Pato is likely to test himself in La Liga as Villarreal close in on a move for the striker.
"It is in the final stages of the paperwork. In the next few hours, it could be one hour or five, the deal should be confirmed," said Corinthians' Eduardo Ferreira.
Will Pato get his career back on track at Villarreal?