Zappacosta goal highlights Chelsea FC Champions League return

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"The clean sheet also and for me and for Marcos Alonso, Davide Zappacosta and N'Golo Kante, it was our first game in the Champions League and to win the first game is very good". No wonder Conte was relieved to be talking about Zappacosta, one of five changes from the side that beat Leicester in the Premier League at the weekend.

"The Champions League puts the pressure on us, especially when playing for a very big club like Chelsea". I trust all my players, not only with words but with facts. If we try to play with only 13 players like last season we are insane.

With those key players kept fresh and Eden Hazard coming off the bench for only his second appearance since close-season ankle surgery, Conte is confident Chelsea will go into their London derby in good condition to claim three valuable points.

Cesar Azpilicueta made it 3-0 for Conte's charges in the 55th minute with a header from the centre of the box following a chip by Cesc Fabregas from a set-piece situation.

Conte said: "He has said that he wanted to cross".

Belgian striker Michy Batshuayi added a goal in the 76th and Chelsea's sixth was an own goal by defender Maksim Medvedev six minutes later.

Qarabag boss Gurban Gurbanov said: "The game was very hard for us".

Still, Gurbanov was proud to have led an Azerbaijani team into the group stage of European soccer's elite competition for the first time.

Chelsea ran riot in the second half against the Group C underdogs and equalled their best showing in the Champions League - a 6-0 win against Maribor three years ago.

"We made lots of errors and I accept we must play even better".