The Manchester City talisman has become one of the best players in the world and made the 40-man Ballon d’Or shortlist yesterday.
However, things were different under Mourinho at Chelsea.
The 25-year-old failed to impress at the Blues and was sold to Wolfsburg in 2014.
And De Bruyne has opened up on his time at Stamford Bridge, revealing he’s pleased to have proved his doubters wrong.
“Obviously it is very satisfying,” De Bruyne told the Daily Mail. “I come here today with a very different view than people had of me last year. It shows that a lot can happen in one year.
“I have no problem with Jose. In some ways it was a good experience”
Kevin De Bruyne
“Everybody had a view of how I came out of Chelsea so, yeah, it gives me satisfaction that people have changed their minds.”
De Bruyne spent three years at Chelsea, spending his final season on loan to Genk.
But despite his disappointment under the Special One in west London, De Bruyne has revealed he holds no grudges towards the Manchester United manager.
“I couldn’t say anything before as I wasn’t playing,” De Bruyne added. “If he says something to the press they are going to believe it because at that moment it was the only thing they had to listen to — the only evidence there was.
“But I don’t think I am like he said. I always want to play. I have played hundreds of times in my career and I am only 25. So I think I have answered it quite well.
“I think they (Chelsea) had a different view than I had of myself. I was young but also experienced. If I had come through the youth then maybe I would be happy to play 10 games there.
“As far as I was concerned, I was ready to play. I have read that, for them at Chelsea, I was too young, but in my mind you are never too young. If you are ready you are ready.
“I have no problem with Jose. In some ways it was a good experience.
“It’s the only experience of not really playing and it gave me another aspect, to realise how to conduct yourself.
“I learned a lot about myself and I am happy with the decision I made to move on.”