A new chapter has begun in French football, and this Sunday one of the most intriguing narratives will be played out at Parc des Princes.
This is the first time the pair have met since 2010, but perhaps more importantly, it's the first time the sides have battled each other as France's richest clubs.
Dubbed widely as "El Cashico," the two teams have players with a combined worth in excess of £500 million.
Each club came into their wealth in recent years, PSG had 70 percent of their shares bought in 2011 by Qatar Investment Authority, who later became sole owners. Their newfound riches turned them into the biggest spenders in world football in 2012/13, where they shelled out some €147 million on new players.
Monaco share a similar story. Bought in December 2011 by Russian billionaire Dmitry Rybolovlev, their ascent back up to the top of Ligue 1 is dizzying, as is the raft of new players that has accompanied their rise. So far, in 2013/14, Monaco's spending has been outdone by just one club, Real Madrid.
Claudio Ranieri's side managed to sign one of the summer's most sought-after talents in Radamel Falcao (£52.8 million), with James Rodriguez and Joao Moutinho (both FC Porto), among others recruited at the Stade Louis II.
Not to be outdone, PSG signed in-demand striker Edinson Cavani (£56.7 million) and Marquinhos (£27.6 million) to add to their already-star-studded lineup.
Another similarity the two clubs share? They are the only two undefeated teams in Ligue 1.
Laurent Blanc's side drew their two opening games this term and followed it up with three wins in a row and a 1-4 win against Olympiacos in the Champions League.
With an entire week since their last game, Monaco will be the fresher of the two sides; the visitors have taken four wins and a draw from their opening five Ligue 1 fixtures.
Monaco have Ligue 1's current top scorer in Emmanuel Riviere, with five goals. Falcao has four.
PSG's top scorer is Cavani with two goals, whereas Zlatan Ibrahimovic leads the assist charts with two.
"The match against Monaco is going to be a huge match!" Cavani told the club's official website. "It will be a very tough game against [a] potential title rival. Obviously we are going to give it absolutely everything."
This promises to be a captivating game, with star players, goals, drama and more. As a new era is ushered in for French football, this is one match that you won't want to miss!
Date: Sunday, 22 September
Time: 20:00 BST/21:00 CET/3:00 p.m. ET
Stream: beIN Sport Play
Television: BT Sport 1 and BT Sport HD (U.K.), beIN Sport, Univision Deportes (both USA)