Chelsea captain,John Terry and striker,Didier Drogba are wary of the threat Manchester United pose ahead of their Sunday showdown.
Terry believes Jose Mourinho’s men will have to be at their best on Sunday.
The Blues head to Old Trafford with a healthy five-point lead at the top of the Premier League after claiming seven wins in their first eight matches.
Louis van Gaal’s side are 10 points adrift of Chelsea following their 2-2 draw at West Brom on Monday.
And despite the patchy form of the Manchester giants, Terry is wary of the threat posed by their star-studded attack.
“They’re still a very good side with world-class players in their team,” he said.
“Results haven’t really gone their way so far but we’re still aware at Old Trafford it’s a hostile atmosphere and they’ve got great support behind them.
“We’ll go there expecting them to be very good.”
Drogba concurs:”They are a threat. We know to go there with our belief and our strength, but we also have to know that they’re a good team.”