Chelsea announced on Thursday afternoon on the association's website that they signed a five-year contract with the 47-year-old Englishman Graham Potter.

Potter, who coached Östersund from 2011-18 and, among other things, led them from Division 2 to the Allsvenskan and a sensational Round of 16 final in the Europa League, is still in close contact with Östersund's then chairman Daniel Kindberg.

And there's no doubting his feelings about the news.

- I think it is fantastic, and I am extremely proud that he - from having been in the world's best league - ends up in one of the world's biggest clubs together with his three loyal and talented employees, he says, referring to his assistant coaches Billy Reid and Björn Hamberg and analyst Kyle Macaulay – who followed Potter from Östersund all the way to Chelsea.

Could you have guessed when you took him to Östersund, that a little over a decade later he would coach one of the world's biggest clubs?

- Pretty quickly, already in 2014, I named him Scandinavia's best coach.

And a few years after that I said he would end up in a big European club.

Now I can legitimately say and mean that he is one of the world's five best managers.

And it's wonderful!

Fantastic fun for him and the others who worked very, very hard and purposefully with the idea of ​​football that they have.

There are of course many different things behind success, but if you have to point to something specific, what is it that has made him reach this far?

- It has exclusively to do with partly his brilliant intelligence and his personality.

And that he is a tactical genius.

And if you then have the opportunity to exercise the leadership that he wants to stand for, then it is only a matter of time before you achieve success.

Kindberg about the announcement: "I got really hot"

Kindberg says he remains in close contact with Potter, but would not say how he was reached by the news that Potter would take over Chelsea.

But he is happy to tell how he reacted to the news.

- I got really warm, and extremely moved.

Even though the image of me is that I'm a cold-blooded soccer vamp, tears can fall from time to time, he says.

Did it do that when you got the message?

- It really did.

SVT SPORT EXPLAINS: Who is Graham Potter?

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Who is Graham Potter?