They have been transformed since the Italian adopted a 3-4-3 formation, in which summer signings David Luiz and Marcos Alonso have excelled as much as the teammates who struggled under Jose Mourinho last season.
Hazard, 25, missed the 1-0 victory over the Black Cats after suffering a minor knee injury in the preparation of the game. But I do look at a couple of the others and think that their competition is as strong as it has ever been.
Antonio Conte has said Eden Hazard is pushing for a return to the starting eleven, but would not reveal anything about Oscar's future.
"It's not easy to play three games in six days". "But they've still got world-class players".
'We played Sunderland on Wednesday, came back at 4am and only had one day to prepare for the game'. The change seems to have worked wonders for the Stamford Bridge side as they have won every single game since then.
"I don't like stats". But, until now, we've been working very well and we are a great surprise for many people. And then we started to work and find the right way for us.
We played a lot of games well with Eden, but I need all my players... it's important to have possibility to choose.
A groin injury suffered by Mathieu Flamini means he has joined James Tomkins, Connor Wickham, Bakary Sako, Loic Remy, Pape Souare and Steve Mandanda on the sidelines, and Pardew said: 'We knew these two games were going to be hard, they are in a ideal moment, Chelsea.
Asked if Chelsea's form has succeeded in intimidating their Premier League opponents and rivals, Conte replied: "Sure, when you arrive from 10 wins in a row, there is a great respect for you, no?" But I repeat this situation is a good situation for the opponent because they have nothing to lose. It is more hard for us to continue this way than for our opponent.