Former Chelsea captain Marcel Desailly insists they're capable of defeating Arsenal on Saturday.
The Blues are on the up after consecutive victories going into the game.
Desailly told GamblingZone: "It looks impossible, but I'll go for a 3-1 win. I'll go for 3-1 Chelsea. Why not?
"This is the beauty of the Premier League. As soon as a team has a mental drop and isn't ready for the intensity of a match, they can lose.
"When Arsenal players arrive at Chelsea, they may believe that it won't be as difficult as it would at Tottenham, [Manchester] City, or eventually, Man United.
"The spirit of Ferguson is still there. Those kinds of stadiums get players ready for the battle. When teams come to Chelsea, they'll think they can win, despite how talented their players are.
"The mental preparation will automatically drop, even if you try to control it."
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