MANCHESTER, August 10, 2018 (News Wires) - Jose Mourinho insists Paul Pogba remains happy and motivated at Manchester United despite reports claiming the France star is unsettled and wants to join Barcelona. Following a successful summer in which he helped France to win the World Cup, Pogba's future at United has been the subject of speculation over the last week of the Premier League transfer window. It is understood United officials have grown increasingly weary and suspicious of Pogba's high-profile agent Mino Raiola, whom they blame for stories that his client would prefer to play for Barcelona. The former Juventus midfielder was among a handful of United players who only returned to pre-season training on Monday, after their countries advanced to the World Cup semi-finals. But Mourinho insists that while he will talk to Pogba before deciding when exactly to re-introduce him to competitive first team action, he has been happy with his attitude and first few days back in training in Manchester. "My perception is he arrived Monday, happy, proud, with a desire to work," Mourinho said ahead of Friday's opening Premier League fixture against Leicester. "He worked amazingly well Monday, Tuesday, Wednesday. He's one of the players that I have to speak to see how physically and mentally he feels.