Defender Cesar Azpilicueta has warned that the pace of Edinson Cavani and Ezequiel Lavezzi could cause all sorts of problems to the Chelsea defence.
The Blues host Paris Saint-Germain on Wednesday night and despite the 1-1 draw in Paris, the Spaniard believes Chelsea are not favourites for their upcoming Champions League clash.
"I'm not sure there is a favourite," Azpilicueta told the club's official newsletter.
"We managed an away goal, which can be important, but I think 1-1 was a fair result in the first game as we dominated the first half but then after half-time they really pushed.
"But now we are back at Stamford Bridge, and we need our great supporters to help us secure qualification.
"I'd actually prefer it if we had been playing for a place in the FA Cup semi-finals at the weekend.
"We are used to playing every few days, which we like to do because it means we are in every competition, fighting for trophies. That's what we want.
"The reality is that we were not able to do this and that gives us a whole week to prepare for the game. For an opponent like this, it is important that your preparations are correct.
"They have very good attacking players, whoever they pick to play in that position.
"Maybe the two [Edinson Cavani and Ezequiel Lavezzi] are more strikers than wingers, but what makes them so dangerous is that they like to play very quickly, with good quality, and they like to score goals.
"There is always big occupation of the penalty box and there is always a threat."