Although a Nadal - Djokovic final would have made headlines, this is the climax that tennis purists would have hoped for before the tournament began. Thiem has been the second best player on clay for some time now and is the player most likely to dethrone Rafa at the tournament he has dominated for so long.
Possessing immense power, Del Potro is capable of hitting anyone off the court on his day but facing Nadal at the French Open is the ultimate test of a tennis player's credentials. The Argentine will need to play on the edge and go for the lines as anything less will not be good enough against the King of Clay, but sustaining such a level for the duration of a Grand Slam match is a feat few have managed in the past.
Thiem will be the heavy favourite here but he would be foolish to underestimate surprise-package Cecchinato, who has played some sensational tennis en route to this semi-final. The Italian fully deserved his victory over Djokovic in the last round and that will have given him even greater belief that he can keep his fairytale run going.
Although Nadal has won every set he has played at Roland-Garros this year, he has in fact had to dig deep against some inspired opponents but that will only serve him well as we reach the business end of the competition.
This is set up to be a classic battle between two players who are likely to meet many more times at the business end of tounaments over the next few years.
This is a very difficult match to call as Fognini certainly has the capability to win this match. His shot making ability is up there with some of the best in the game and he will certainly cause Cilic problems, but the real question is whether he can sustain the level required to beat Cilic over the long format.
Two lefties take to the Philippe Chatrier stage on Monday but that is where the similarities end as this is uncharted territory for German youngster Marterer, whilst Nadal is of course a mainstay at this stage of the competition.
An interesting contest ensues here as Verdasco has got the better of Djokovic three times on clay before and has often picked up a set in his defeats so he matches up well to the Serb on this surface.
Del Potro lost the first set he played in this year's championship but since then he has found his groove and has impressively dispatched both of his opponents so far. The Argentine is a danger to anyone when he's fit and that appears to be the case at Roland-Garros so expect him to have too much for Ramos Vinolas in this third round encounter.
Gasquet has struggled against the very top players throughout his career and his record against Nadal is testament to that. Perhaps the only way he can give himself a glimmer of hope against the King of Clay here is to completely change his playstyle in an attempt to catch the Spaniard off guard...
A close battle is expected here between these two who have already met twice this year in matches that went to a deciding set. Their paths to the final have also been quite similar with a straight sets win in the first round followed by a four-set victory in the second.
Both men are coming off five-set wins so there should be no physical advantage for either player, and whilst Zverev is all too aware of his disappointing Grand Slam results compared to his success in other tournaments, his epic victory in the second round on Wednesday could well be a turning point as he seeks to showcase his undeniable talents on the biggest stage.
Del Potro has had a solid year so far with two titles to his name but his clay court preparation has not been ideal due to a thigh injury picked up in Rome a couple of weeks ago. His participation at Roland-Garros was in doubt but he came through a testing first round match with Mahut which leads us to believe he should be favoured here.
Cilic is unlikely to know a great deal about Hurkacz given that his opponent is playing in his first Grand Slam event but the world number four has enough experience to avoid complacency. Cilic looked assured in his first round win over James Duckworth despite testing conditions and appears in good shape to record back-to-back straight sets wins on Philippe Chatrier.