Chelsea will face Manchester City on Saturday.
He said: “Yes, they offered it to me.
“It was a very good offer but at that time I was with Portugal and I said I needed time to think.
“They came to Portugal and they talked to me about their ideas for the team in the next three or four years.
“I didn’t come to Chelsea because they were the richest club in the world. I came because they offered me a job that I thought was fantastic.
“I don’t think about who is the richest club in the world. If it is Manchester City or Milan, for me there is no difference.
“I am concentrating only on my players and not what happens elsewhere.
“If I am happy in my house, I don’t look at other houses because I need to look after my house first. And my house is Chelsea.”
