Monaco coach Leonardo Jardim praised his side for overcoming a slow start against Metz to record a 15th straight Ligue 1 victory, a new record in the competition.
Radamel Falcao s 78th-minute goal secured a 1-0 away win and moved the champions one clear of the previous best of 14 set by Bordeaux in 2009.
Monaco s run began back in February and has been completed without Kylian Mbappe, who was left out of Friday s squad amid rumours of an impending move away from Stade Louis II.
The visitors were made to work for their piece of history by a resilient Metz before Falcao s late intervention made it 23 league matches unbeaten.
We re happy because we finished with a win and we set a new record of 15 wins in a row, Jardim said after the match.
I think we played well even though in the first 30 minutes we missed a lot of passes.
We accelerated in the second half, there was more mobility and intensity and that helped us win the match.
meilleur de la avec 5 buts en 3 matchs !
— AS Monaco (@AS_Monaco)
Monaco might have been forced to settle for a stalemate had it not been for new signing Rachid Ghezzal, who came off the bench to supply a superb pass for Falcao s winner.
The former Lyon man described his dream debut as a beautiful evening , but knows he still has plenty to prove.
This is a good first match [but] I have to keep working hard to earn my place, Ghezzal said.
I don t come here with any guarantees.