Monaco have won the Ligue 1 title for the first time in 17 years after a 2-0 win at home to Saint-Etienne.
After beating Lille 4-0 and surpassing 100 league goals on Sunday, Monaco knew a draw would be enough to end Paris Saint-Germain’s four-year dominance of Ligue 1.
Mbappe, 18, latched on to captain Radamel Falcao’s through ball, skipped around the goalkeeper and slotted in.
Substitute Germain tapping into open goal to secure a 10th successive home victory.
The new champions rarely looked troubled in registering their 11th consecutive league win and subsequently lifting a trophy that has eluded them since the turn of the millennium.