A last-minute winner from Pierre-Alain Frau saw saw Lille steal a dramatic 2-1 win at Marseille to return to the top of the Ligue 1 standings and deal a blow to l'OM's hopes of retaining their title.
Eden Hazard had given the visitors an early lead with a powerful shot, but it was cancelled out by Loic Remy just after the hour mark, and they looked like sharing the points until substitute Frau popped up at the death.
Lyon striker Lisandro scored a hat-trick in a 5-0 thrashing of Arles as Claude Puel's side moved to within four points of leaders Rennes.
The Argentina striker stole the show, opening the scoring early on before wrapping up his hat-trick after the break, with other strikes coming from Miralem Pjanic and Michel Baston.
After 12 minutes, Jimmy Briand broke through and pulled back for Lisandro, who composed himself and finished, before the pair combined again for the benefit of Pjanic who ran on to Lisandro's cross to score.
A pinpoint cross from Delgado at the start of the second half picked out Lisandro and he strolled on the the ball and headed home, completing his hat-trick three minutes later. Lyon added a fifth in injury time, with substitute Baston taking aim from 20 yards to add gloss to the result.
A strong second-half performance from Bordeaux gave them a 3-1 victory at Brest and lifted them to seventh in the Ligue 1 table, leapfrogging their opponents in the process.
After a goalless first period the pace soared, with Wendel and Jaroslav Plasil putting the visitors two up before Brahim Feradj and Cheick Diabate traded late goals to make it 3-1.