Tony Pulis admits his Crystal Palace team are in an 'uneven contest' against Chelsea this weekend.
But the Eagles boss, whose team are 17th in the Premier League, feels his players can produce a shock result against the leaders.
Recent form suggests such an outcome is highly unlikely - Chelsea hit six against Arsenal last Saturday and put four past Tottenham earlier in the month, while Palace are finding goals difficult to come by as the season enters its most crucial stage.
Pulis, though, has hope of a positive result against the Blues, who play an away Champions League quarter-final tie at Paris St-Germain on Wednesday night.
"If you're looking at the balance of the two clubs and what they have and haven't got it is a very uneven contest," he said.
"But football is a funny old game, if we set ourselves up well and give everything we possibly can...you never know.
"If you put our players up against their players individually I don't think there are many of our players who would get into their team.
"But collectively, as a group and as a team, if you are working together and putting things in place you can make it difficult for them."
With just one goal in their last five games, and strikers Marouane Chamakh and Dwight Gayle missing through injury, it is clear where Palace's problems lay.
Pulis knows his players will have to improve their conversion rate in front of goal if they are to stand any chance of causing an upset this weekend.
"They have got some outstanding players," he said.
"There is no doubt that we will have to defend well but we also have to be a threat going forward and when we get our chances we are going to have to start taking them.
"We have talked about it this week with the players, when we get in there we need to start hitting the target, there are a lot of occasions when we get in there and snatch at things.
"You need a little bit of luck along the way but you need players who are going to relish the challenge and the players have got to do that."
What will be the outcome in the match Crystal Palace vs Chelsea?