Leroy Sane believes that Chelsea are Manchester City’s biggest threat for the title this season because of the Maurizio Sarri effect.
When asked by Sky who he thought were his side's biggest rival, Sane said: "I think Chelsea because they have brought a really good coach.
"If you have seen how Napoli played last season, it was really, really attractive and really good. We suffered against them.
"They could be really tough."