Les Parisiens hold a six-point lead over Franck Haise's surprise package in first place, but the walls of their fortress are no longer standing strong.
Match preview
Only a few days on from getting the better of his former club on the pitch, former Nice and current PSG boss Christophe Galtier has been rocked by a leaked email allegedly showing the Frenchman complaining about the amount of black and Muslim players during his time in charge of Les Aiglons.
Galtier "firmly denies" the accusations against him, but yet another significant off-field distraction is once again threatening to derail PSG's progress, especially after the Ligue 1 champions ended pulled themselves out of the rut at the Allianz Riviera.
Goals from Lionel Messi and Sergio Ramos either side of the half-time whistle secured PSG a 2-0 triumph over Nice last Saturday, allowing them to maintain their unassailable six-point advantage over Lens with just eight games left to go, but Marseille and Monaco are mathematically not out of the title picture just yet.
Furthermore, the Parc des Princes atmosphere no longer strikes fear into the hearts of PSG's adversaries, with Galtier's side losing their last two at home to Lyon and Rennes without scoring a goal - the first time since the 2009-10 campaign that they have suffered back-to-back home defeats while failing to find the back of the net.
PSG lost three on the bounce at home as recently as the 2020-21 campaign - where their streak of supremacy in French football was brought to an end by Galtier's Lille - and a trailblazing Lens side have similar aspirations in mind.
Pulling the strings against former club Strasbourg, who are mired in relegation danger after a surprise charge for Europe last term, Lens playmaker Adrien Thomasson set up Przemyslaw Frankowski to break the deadlock against Les Coureurs with just 11 minutes gone last weekend.
Argentine defender Facundo Medina added a second before Kevin Gameiro's 84th-minute consolation gave Strasbourg a glimmer of hope, but it was a fruitless endeavour against Haise's Lens, who are firmly in contention to cap off their meteoric rise with just a second Ligue 1 crown.
Success over Strasbourg marked Les Sang et Or's fourth win on the bounce following previous victories over Clermont, Angers and Rennes - having previously only won one in seven during an underwhelming February period - thus keeping them two points clear of Marseille in the runners-up spot.
European football is almost a formality for a side who only returned to the big time in 2020, and Lens travel to the Parc des Princes having only shipped one goal in their last four Ligue 1 contests, as well as losing just two of their 15 Ligue 1 away games this term - albeit while drawing eight of them.
Lens spoiled PSG's New Year celebrations with a 3-1 triumph at the Stade Bollaert-Delelis earlier this season, and the reigning champions only have one win to their name from five contests with Les Sang et Or - failing to keep a single clean sheet in that time.
Paris Saint-Germain Ligue 1 form:
W
W
W
L
L
W
Paris Saint-Germain form (all competitions):
W
L
W
L
L
W
Lens Ligue 1 form:
D
D
W
W
W
W
Lens form (all competitions):
L
D
W
W
W
W
Team News
Already working without Neymar (ankle) and Presnel Kimpembe (Achilles) for the remainder of the season, PSG announced earlier this week that defender Nordi Mukiele would not play again this season, having been forced to go down the surgical route to correct a hamstring problem.
The perennially-injured Renato Sanches has also been ruled out for three to four weeks with an adductor issue sustained in the win over Nice - coming off after just 10 minutes - but the possible return of Marco Verratti from a muscular issue would soften the blow.
Juan Bernat is also touch-and-go as he battles an ankle concern, but Golden Boot-chasing Kylian Mbappe - who was not feeling 100% during the Nice win thanks to a hip complaint - has been training as normal, and the Frenchman needs just one more strike to become PSG's all-time leading Ligue 1 scorer with 139.
As for Lens, long-term knee victims Jimmy Cabot and Wuilker Farinez continue on the long road back to recovery, while Julien Le Cardinal (knee), Steven Fortes (knee), and Adam Buksa (ankle) are also in the infirmary.
Haise has no fresh concerns to report from the triumph over Strasbourg, but he may consider bringing Massadio Haidara back into the fold for a greater defensive presence, forcing one of Florian Sotoca, Angelo Fulgini or Thomasson to the bench.
Sotoca - who has been utilised in an unfamiliar wing-back role recently - is in line to make his 100th Ligue 1 appearance this weekend, but the 32-year-old has gone scoreless in his last 21 top-flight matches since netting against Lyon in October.
Paris Saint-Germain possible starting lineup:
Donnarumma; Pereira, Marquinhos, Ramos; Hakimi, Verratti, Soler, Vitinha, Mendes; Messi, Mbappe
Lens possible starting lineup:
Samba; Medina, Danso, Gradit; Sotoca, Abdul Samed, Fofana, Frankowski; Thomasson, Fulgini; Openda
We say: Paris Saint-Germain 2-2 Lens
A goal-happy Lens side travel to the capital knowing that the pressure lies firmly on PSG's shoulders, and as they have done all season, Les Sang et Or should play without a shred of trepidation, especially with the hosts losing their golden touch at home.