Rome, January 4 - AC Milan's unsettled, injury-dogged Brazil striker Alexandre Pato has agreed a move back to his homeland with Sao Paulo club Corinthians. Pato, 23, signed a 15-million-euro, four-year deal, saying he wanted to "get more regular playing time". Milan CEO Adriano Galliani finalised the deal with the Club World Cup winners Thursday night. Pato decided to move after playing only four times for Milan this season. He has been plagued by a series of leg-muscle injuries over the last three years. Milan owner Silvio Berlusconi, a media magnate and three-time Italian premier who is standing again in the February 24-25 general election, was optimistic his club had not seen the last of the striker, who is dating his younger daughter Barbara, a Milan director. "Unfortunately Pato said he wants to return to Brazil for a year or two, but he's promised to come back to Milan afterwards," Berlusconi said Thursday. Pato joined Milan from Internacional for 20 million euros in 2007. Milan turned down a bid reportedly in the region of 40 million euros for the player a year ago from Paris St. Germain. Talks on a move that would see Pato's compatriot Robinho return to Brazil with Santos have apparently stalled and the forward is back in training with Milan after Serie A's Christmas break.