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Chelsea are unbeaten since Thomas Tuchel replaced Frank Lampard as Chelsea boss.
The Blues have gone from 9th to 4th under Tuchel, winning 7 of his 10 games in charge in all competitions.
Asked what’s different under Tuchel, Everton boss Carlo Ancelotti replied: “It’s really difficult to say.
“Offensively they play a little bit different, not too much because the players are still the same. They are really consistent, because they haven’t lost games under Tuchel.
“They are solid, but this doesn’t mean Lampard didn’t do a good job. In my opinion, Lampard did a fantastic job when he was there. He [Tuchel] has the quality.
“He’s a young manager but he’s already had experience in Germany, experience in Paris and so he’s a manager with a lot of knowledge and of course a lot of ambition. Because he’s young.
“He’s not old, like me! I have strong ambition, even if I am a little bit old!”
Ancelotti brings his Everton side to Stamford Bridge on Monday in another game that will have big implications on the race for the top four.