Neymar was on target the day after signing his contract extension but Paris Saint-Germain (PSG) were held to a 1-1 draw at Rennes on Sunday that leaves Lille a step closer to a remarkable league title triumph.
PSG led at half-time after Neymar converted a controversial penalty award, but they were pegged back in the second half as Serhou Guirassy headed in the equalizer.
PSG are now three points adrift of Ligue 1 leaders Lille, who know they will be champions for the first time since 2011 by taking four points from their remaining two matches of the season.
The Parisians have won the French title in seven of the last eight years but they have regularly wobbled this season and the decision to replace coach Thomas Tuchel with Mauricio Pochettino during the winter break looks like it will not have the desired impact.
“We will keep believing until the end, we won’t lose faith, but at PSG we need to do much better,” captain Marquinhos told broadcaster Canal Plus.
“Lille are a really good side and are winning every match. We have two games left and we need to believe, focus on ourselves and perform better.”