Saturday's game at Metz was abandoned after fans threw firecrackers at Lyon's goalkeeper, while PSG lost 3-0 at Montpellier.
PSG moved joint-top of Ligue 1 after goals from Angel Di Maria and Jese Rodriguez helped them to a 2-0 win over Nantes.
Monaco trimmed Nice's lead at the top of Ligue 1 to three points as Leonardo Jardim's side thrashed Nancy 6-0.
Monaco missed the chance to close the gap on Ligue 1 leaders Nice while Alexandre Lacazette scored twice for Lyon.
Lyon's alarming slump in form continued on Saturday as they lost 3-1 at home to Guingamp.
Paris Saint-Germain claimed a share of second place in Ligue 1 with a 2-1 win at Nancy.