Lyon believed to let slip the title of champion of autumn in full winter before recovering it in three minutes and two goals vis-a-vis Rennes.
It was therefore not the evening for OL to concede their second defeat of the season or to end their fine streak of fifteen games without a setback.
On the contrary, with such a mind, OL can really dream.
In this championship where good matches are much rarer than very bad ones, this Rennes-Lyon should be placed in the category of matches to be highlighted if the leaders of French football want to quickly convince a broadcaster.
We knew the Rhone players to be rather playful since the start of the season with a regime without the perfect European Cup to give them strength in L1.
But we had forgotten that Rennes, long victim of an air gap, had this ability to play brazenly and quickly projecting towards the opposing goal.
Depay, Lyon's best asset
And Grenier perfectly illustrated this theory of light emerging from nothing.
Grenier, long in the cellar in Rennes, has regained credit with Julien Stéphan for two games.
With a powerful strike, he opened the scoring (1-0, 20th).
Rudi Garcia's men did not expect to be so overwhelmed in midfield, especially by international duo Camavinga-Nzonzi.
They only have one opportunity to get under the crampons in the first period.
But a big one with a strike from Toko-Ekambi, shifted by a free kick from Depay, which crashes on the post of Salin (24th).
Florian Maurice, the much-regretted Gone lavish at OL
Things didn't get better at the start of the second half for OL.
Grenier shifts Bourigeaud to the left and, in two stages, the latter doubles the bet (2-0, 55th).
But in three minutes, everything will change.
Depay, proves that he remains Lyon's best asset to dream of the title.
With a beautiful sequence of chest control - volley, he reduced the score (2-1, 79th).
Then the Dutchman deposits his free kick on the head of Jason Denayer who equalizes in stride (2-2, 82nd).
PSG are warned.
This Lyon will not let go this season.
Rennes: Grenier (20th), Bourigeaud (55th);
Lyon: Depay (79th), Denayer (82nd).
Rennes: Bourigeaud (87th);
Lyon: Aouar (14th), Paqueta (54th).
Salin - Traoré (cap.), Nyamsi, Aguerd, Truffert - Camavinga, Nzonzi, Grenier (Tait, 74th) - Bourigeaud, Terrier (Rutter, 74th), Doku.
Lopes - De Sciglio, Marcelo, Denayer, Cornet - Paqueta (Caqueret, 68th), T. Mendes, Aouar -Kadewere (Cherki, 68th), Depay - (cap.), Toko-Ekambi.