Romelu Lukaku lifts the lid on what Jose Mourinho is like behind the scenes
• Mourinho has been under a lot of criticism this summer for lashing out on his player
• The Belgian, however, insists the atmosphere at United is good
Speaking to Business Insider, Lukaku said: "I get to see a total different image of him where he's really cool. People need to understand that we play this game not to lose it. We play this game to win.
"So when you lose, you get angry, you get upset. So for him... when he's upset, he's a type of person that you can really see that he's mad or angry. So I think this is normal.
"We make jokes. He would send me like sometimes good advice, or funny videos, some stuff like that. So he's really a family guy. That's how I know him," he said.
"We have a good relationship. I think it's nice to play for him."
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