Paris St-Germain confirmed a record-equalling 10th French title with four games to spare despite being held by 10-man Lens – but fans left early to celebrate outside the stadium without the players.
Lionel Messi’s stunning curled strike looked set to seal victory in style for the hosts, who required only one point to clinch the league.
But despite Kevin Danso’s dismissal for a second booking, Corentin Jean equalised for a spirited Lens late on.
It is Mauricio Pochettino’s first league triumph as a manager.
He said: “We are going through a difficult period with the fans and we hope it will get better. We’re in a democracy and we accept all protests. But we have to show respect for this title.”
The club’s ultras, annoyed by the club’s Champions League exit to Real Madrid, started to leave the stadium 15 minutes before the final whistle rather than celebrate with the players.
The ground was empty 10 minutes after full-time and the players did not do a lap of honour afterwards.