In the first half of this season, Marseille has struggled to find their rhythm on the pitch, while Rennes have been able to keep their heads above water despite facing tough opponents.
However, it seems that things may be about to change for both clubs after the weekend's draw at the Stade de France.
Guémourtin's goal was disallowed in the 64th minute when he attempted to score from the penalty spot but was ruled out by the referee.
This decision comes as a blow for Marseille who were hoping to continue their unbeaten run with a win against one of their biggest rivals.
Rennes, meanwhile, will now need to focus more on building off of this result and try to avoid another defeat.
Despite the setback, both teams have shown signs of improvement since the start of the season and there could be plenty of opportunities for them to improve going forward.
Overall, it's likely that both teams will look to build upon this draw and continue their good form going into the new year.