Los Che's French defender thinks that his team can beat his compatriots in the Champions League and progress to the last eight despite a home loss in the first leg
Los Che lost the first leg at the Mestalla 2-1 with Adil Rami scoring a late goal to give the Spanish side hope in the second leg.
"We lost at home but nevertheless we have chances to win in Paris. In football, nothing is impossible," Cissoko told a press conference.
"It will be a tough match; we will have to be patient. I’ll have to be strong in defence.”
The France international added that, while the absence of Zlatan Ibrahimovic and Marco Verratti will benefit his side, PSG have more than capable alternatives.
"These are two major players [that are missing]. Ibrahimovic ball holds up well and is a good player. Verratti technically dictates the game," he added.
"Despite those two losses they have many options and can play both Beckham and Menez."
Cissokho went on to say that mistakes in defence that have led to goals being conceded this season have to stop, starting on Wednesday night.
"We have lost points due to errors, so we cannot make them again, especially against PSG because it could cost us the tournament."