Mohamed Fofana's goal in the first half proves to be the difference between Reims and Rennes.
Reims have registered a narrow 1-0 victory over Rennes at home in Ligue 1.
The only goal of the game at Stade Auguste-Delaune II came in the 32nd minute when Mohamed Fofana headed home Antoine Devaux's free kick from close range.
Alou Diarra came closest to equalising for Rennes on the hour mark, but his effort from outside the Reims box struck the post.
The win sees Reims go a point clear of the relegation zone, while Rennes are now ninth in the table with 42 points from 29 matches.
Result: Erding header sinks 10-man Reims >