Bordeaux are flying ahead of the Sunday evening battle at the Parc des Princes while big-spending PSG were poor in the 0-0 showing at Ajaccio last weekend and had to recover from two goals down to salvage a point at home to lowly Lorient on August 11.
"Lorient and Ajaccio have not made things easy for us because at some point Paris will be willing to react," said according to the southern club's president Jean-Louis Triaud.
"I cannot imagine that Paris will not be crowned champions at the end of the season."
Bordeaux have six points from two games, using their momentum from the end of last season when they won their last six matches to clinch fifth spot and qualify for the Europa League play-off round.
"We will travel to Paris very relaxed. We have nothing to lose and we will take our chance with the only goal to leave without any regrets," Triaud said.
PSG could be without frontman Zlatan Ibrahimovic, who missed the Ajaccio game with a sore right foot having got his team off the hook with two goals in the opener against Lorient.
Ezequiel Lavezzi will certainly miss the game following the red card he picked up last weekend though Brazilian centre back Thiago Silva, another high-profile addition in the close season, could make his debut.
Bordeaux, who won the most recent of their six Ligue 1 titles, drew 1-1 with PSG both home and away last season, and the year before that they won 2-1 in the capital as they completed a league double over this season's title favourites.
They have kept hold of their two top scorers from last season, Yoan Gouffran and Cheikh Diabate, and January signing Ludovic Obraniak looks set to thrive in his first full season at the Stade Chaban Delmas. The Poland international has already scored two goals and set up another in the club's first two league games of the new season.
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