The two capital outfits face each other in the first leg in Paris on Wednesday in a game you can see live on Sky Sports.
While respecting Chelsea and their squad, Lavezzi does believe that PSG will be the ones to progress into the last four.
"Chelsea are a big team but it did not matter who we drew: we don't fear anybody," said Lavezzi.
"We have to respect Chelsea of course because they have a successful coach and very good players but now, if you ask me who are the superior team, then I have to say PSG.
"We have built one of the strongest teams in the world and we feel that now this is our time.
"PSG has now arrived at a level where anything is possible. We are at a level where we attract the best players in the world, where we can beat any team in the world, and of course where we can win the Champions League."