Florian Thauvin scored the decisive goal as 10-man Lens held off Paris Saint-Germain to win their first Trophée des Champions at Stade Bollaert-Delelis.
The Coupe de France winners were forced to play more than 50 minutes with a numerical disadvantage, but a resilient defensive display secured the season's curtain-raiser.
PSG controlled possession early on, yet it was Lens who broke the deadlock against the run of play in the 32nd minute.
Abdallah Sima initiated the attack before Matthieu Udol delivered a dangerous cross to the far post, where Thauvin arrived to beat goalkeeper Matvey Safonov.
The hosts' celebrations were curtailed seven minutes later when Kyllian Antonio was shown a red card following a foul.
Reduced to 10 men before the interval, Lens dropped deep to absorb relentless pressure from Luis Enrique's side across the second half.
Despite dominating 69 percent possession and registering 22 attempts on goal, PSG repeatedly failed to break down a compact defensive unit anchored by goalkeeper Risser.
The capital club thought they had found an equaliser in the 75th minute when Fabián Ruiz found the net, but the strike was disallowed for offside.
PSG's numerical advantage was wiped out in the 86th minute when Nuno Mendes received a straight red card for violent conduct.
Lens navigated five minutes of stoppage time to seal the 1-0 victory and deny PSG a fifth consecutive Trophée des Champions.
