Kevin de Bruyne has already begun preseason training at Chelsea.
The January signing did some session work with Marko Marin last week.
"I've trained separately with Marko Marin," he told Sporza. "Thursday everyone goes back and then it really starts.
"The club is structured to perfection. It takes so little adjustment. That I'm with Belgians Lukaku and Hazard will still be an advantage. This makes everything easier."