Paris Saint-Germain head coach Christophe Galtier believes his players will have to show they can "play under pressure" if they are to take three points from Wednesday's Champions League meeting with Benfica.

The fixture sees two sides with 100-per-cent records so far in Group H face off, with PSG top by virtue of scoring more goals than their Portuguese counterparts.

Both teams also lead their domestic leagues and are yet to lose a game so far this campaign, suggesting the match in Lisbon could be an exciting and tight affair between two sides in excellent form.

And Galtier acknowledged the challenge that faces his players, telling reporters at Tuesday's pre-match press conference: "What we are going to have to do, to perform well and beat Benfica, is have this ability to play under pressure.

"This team will come and get us, it's the DNA of the club and their coach. It puts enormous pressure on us. We have to be much more effective on an offensive level.

"It's a team that has been undefeated since the start of the season. It's very interesting to watch them play, very well organised, with quality. They bhave significant collective strength.

"I'm not surprised that they're at this level. Today, Benfica can claim to be a favourite of this group."

Benfica's strong start has been aided by their excellent home form, having won all seven of their games at the Estadio da Luz in all competitions.

But Galtier is confident his players will be able to cope, adding: "There will be an extraordinary atmosphere. This stadium is growing very strong, but I have players who have a lot of experience, a lot of experience in relation to that.

"Will we be able to play and play well with public pressure? Will we be able to do it? I think we have the qualities. We can also be very dangerous."