Slovan Privat's third Ligue 1 goal of the season saw Guingamp condemn 10-man Nancy to their eighth defeat in nine matches.

The visitors had Modou Diagne sent off midway through the first half and never recovered, with the 1-0 defeat leaving Nancy in the relegation zone.

Yannis Salibur missed a gilt-edged chance for Guingamp by heading over, before quickly making amends by laying on the winning goal, with Privat striking home just before the hour.

Guingamp's win represented a return to form after their 3-0 loss at Angers and moved them up to eighth.