Chelsea boss Antonio Conte has confessed that he does not expect his side to continue their current run of form, claiming that "no team is unbeatable".
The Italian has guided the Blues to a perfect run of 10 wins from 10 in the league, helping to recover from a previous sticky spell that saw them slip down the table.
Chelsea have since climbed above all their fellow title rivals and are now six points clear ahead of Saturday's trip to face Crystal Palace, with Conte's opposite number Pardew admitting on the eve of the game that the West London outfit "look unbeatable".
Conte is expecting a "very tough" test this weekend, though, despite Palace's disappointing run that has seen them win just one of their last 10 games in the top flight, seven of which have ended in defeat.
"We all know that tomorrow is a London derby and it will be very tough against a good team," he told reporters. "For now Palace are not in a good position in the table, but their squad is very good.
"We will continue to work and improve. I think that no team is unbeatable, but for us now it is very difficult because when you play against another team, that team has nothing to lose."
Palace have not won any of their last eight London derbies and have beaten Chelsea just once in the league since 1990 - a 1-0 win at Selhurst Park in March 2014.
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