The Portuguese has suggested that the striker will not make the move to China or the USA and believes that he has proved his critics wrong with his form in England.
The Argentine's current deal at Camp Nou expires in 2018, but his Brazilian team-mate expects him to commit his long-term future imminently.
The Spain international converted the all-important winner as the Blues momentarily moved nine points clear at the top of the Premier League table.
The Torino striker scored twice as Giampiero Ventura's charges thrashed their opponents, with all four of the visitors' goals coming in the first half.
The Arsenal left-back found the back of the net for his country for the first time as Julen Lopetegui's side strolled to victory in Granada.
Last season's runners-up miss out on the chance to end the group stage with a perfect record as Carlo Ancelotti's side win at home again.
The French striker scored the winning goal late in Tuesday's game to ensure the European champions remain in with a chance of finishing top of their group.