"I have not given any interviews saying I have any difficulties in the Premier League," he said in a statement.
"I love playing in the Premier League and I am very happy at Manchester United.
"I want to help the team win and am not worried where I play on the pitch, neither do I feel any extra pressure playing in the Premier League compared to other leagues.
"I have absolutely no idea where the reports came from. I have given no interview saying I have any difficulties at all with my form or the Premier League itself."