Chelsea fullback Branislav Ivanovic says they cannot get carried away after victory over Norwich City.

Posting their best start to a season since 2006 - 19 points from 21 - was the perfect way for Chelsea to go into the international break.

"At the moment, a lot of things are okay," said Ivanovic after smashing home his fourth goal already this season on Saturday.

"But we still have to work hard and it's going to be very, very tough. We expect, after the international break, a very hard period of games and we have to be ready for that."