The Argentine struggled at Old Trafford last season and was sold in the summer to the French champions.
But he has rediscovered the form of his Real Madrid days, scoring 13 goals and providing 10 assists.
And ahead of the mouth watering Champions League round of 16 tie, Courtois paid respect to PSG but insisted Chelsea have the players to hurt the French side.
He said: "I'm sure it'll be like the game here last year. We'll have to defend well, but also we'll have to show our quality when we have the ball and try and make in-roads as an attacking side ourselves.Â
Angel Di Maria - Spotlight On
"Last year we had a difficult game here as well. With Di Maria they've added quality to their team.Â
"In the league they're doing very well and will win it. It will be a difficult game for us, but hopefully also for them.Â
"We have the quality to cause them problems."