"The Premier League is wonderful and I want to remain in the Premier League," he told Sky Sports.
"I want to remain at Chelsea, because the level is very, very high.
"The atmosphere in the stadiums is really fantastic. And so it's a wonderful championship. I'd like to remain here.
"I am sure that, in two seasons, we will be able to close to them [Liverpool and Manchester City].
"But I am not sure that, in two seasons, we will be able to be better than them."