Second-place Monaco beat struggling Toulouse 4-0 on Sunday to remain 21 points behind runaway leader Paris Saint-Germain in the French league.
Promising Portugal midfielder Bernardo Silva and countryman Fabio Coentrao scored in the first half, while forwards Guido Carrillo and Helder Costa netted after the break.
Ivorian striker Lacina Traore had a goal disallowed for offside before setting up Silva's 28th-minute opener with some great skill down the left.
Traore limped off moments later with a groin injury and was replaced by Carrillo.
Coentrao headed home in the 36th after Carrillo's looping header came back off the crossbar.
Toulouse top scorer Wissam Ben Yedder's low penalty was expertly saved by goalkeeper Danijel Subasic soon after.
Carrillo scored in the 71st and substitute Costa got his goal in injury time.