Cavani returned the favour with a flawless cut back and Neymar poked the ball home eight minutes from time.
Neymar had headed the ball out to Edinson Cavani, who unselfishly squares the ball back to the Brazilian to tap into an empty net.
The Parisians bossed the game in the opening stages but were unable to make the most of their early possession, although the away fans were still happy enough to see Neymar producing plenty of flicks and skill, even if it lacked an end product. Neymar then span a ball in for Marquinhos whose header came back off the post (35').
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Neymar would go on to put a goal and assist to his name.
In the 82nd minute, Cavani returned the favor to Neymar, who found the open space to get a quick touch on frame, helping the club secure a 3-0 win.
The Brazil star took his place on the left-hand side of a front three alongside Cavani and Angel Di Maria and looked lively throughout against an opponent that was happy to sit deep and defend in numbers until PSG found a breakthrough thanks to Jordan Ikoko's weird own goal.
Despite Monaco fans' concerns that French prodigy Kylian Mbappe might be leaving, they know they can still trust Radamel Falcao after the Colombian striker hit a treble. The France worldwide Mbappé was left on the bench amid speculation that he wants to join PSG but he was not needed as Monaco equalled the record of 14 consecutive wins in the French league. The assist was for Edison Cavani's 62nd minute goal.