Chelsea heads into the second leg of the quarterfinal Champions League tie following a 3-1 defeat in France, and will now require a victory with a margin of two clear goals to stand a chance of progressing.
PSG, which is without injured striker Zlatan Ibrahimovic for the fixture, is undefeated in all competitions since January 22 and has won all of its last 11 games.
"It's an intimidating stadium,” Sagna told Le Parisien. “It is a small pitch and the fans are very close to the pitch.
“There is a lot of intimidation and agitation. You really hear the chants and whistles. There are not many people, but they sound like they were doubled.”
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