The defender described the Champions League clash as "the game of the season" for his side, who will reach the last eight with a victory at Stamford Bridge
Thiago Silva is "very confident" that Paris Saint-Germain can cause a Champions League upset by eliminating Chelsea at the last-16 stage on Wednesday.
After a first leg 1-1 draw at the Parc des Princes, the Ligue 1 side head to Stamford Bridge knowing that only a win or score draw will offer a chance at a place in the quarter-finals.
PSG were knocked out by Jose Mourinho's men on away goals at Stamford Bridge last season in the European competition, but the Brazilian centre-back is adamant that this year they will not slip up through complacency.
"I think we have a great chance," Thiago Silva told L'Equipe . "The PSG team is very strong this year, even if we must improve our performances in attack.
"Last year against Chelsea we won 3-1 at home and, ironically, I think we played even better in the first leg this campaign than we did in that win. That is why I am very confident for the second leg.
"This is the game of the season. Motivation in the Champions League is higher than in Ligue 1. I think we are much stronger than last year's second leg at Stamford Bridge.
"Chelsea are a great team, but we have the opportunity to beat them. Last year, the first leg maybe gave us a lot of confidence but, when we got there, we weren't concentrating enough.
"In my view, we said: 'We have already won!' This time it's different. We need an outcome, and it's better that we go out there with this in mind."
Thiago Silva also highlighted international team-mate Willian, Brazilian-born Diego Costa and Belgian attacker Eden Hazard as Chelsea's main threats to Laurent Blanc's men.
"It's hard to say how they've changed," the former AC Milan man added. "They have quality players who can make the difference at any time, like Diego Costa, Hazard and Willian.
"That's why they are Premier League leaders and we will have to stay very focused. They are as strong on set pieces - very dangerous in fact - but so are we!"
