The centre-back has warned that the French title holders will have to be flawless if they are to overcome the Catalans in midweek
Marquinhos has challenged Paris Saint-Germain to play at a level they have never before achieved in order to beat Barcelona in the Champions League.
Chelsea and Conte could struggle in the Champions League
After finishing second behind Arsenal in Group A, the Ligue 1 champions have been pitted against the Spaniards, who have knocked them out of the competition in two of the last four years.
Although PSG, who lie second in Ligue 1, impressed in beating Bordeaux 3-0 on Friday, the Brazil international centre-back is aware their level needs to be raised a notch.