The Argentina forward made his £59.7 million ($82m) move from Real Madrid to Man United, generating plenty fanfare but flopped badly, leaving the club to join PSG the next year.
He now claims his then coach at Manchester, Louis van Gaal is the main reason for his failure in English football.
“I didn’t give a f*ck about the Manchester United No. 7, at first they talked to me a lot about it, it was just a shirt” Di Maria told TyC Sports.
“My problem at Manchester was the coach. Van Gaal was the worst of my career. I would score, assist, and the next day he would show me my misplaced passes. He displaced me from one day to the other, he didn’t like players being more than him.”
Di Maria was sold to Real Madrid coached by Jose Mourinho in 2010 and hit 26 goals under the Portuguese coach as the Blancos won La Liga and Copa del Rey glory.
Praising Mourinho, Di Maria said: “Mourinho is insane, with me he was always a good guy. He fought with anyone though, he didn’t give a f*ck. One time he fought with [Cristiano] Ronaldo telling him he didn’t run, that everyone ran for him.”