Rafael Nadal won his sixth Roland Garros title at the weekend, at the expense of Roger Federer.
Yet the Swiss made the best start, leading 5-2 and even claiming a set point.
The key factors of the final are numerous - let's take a look at them.
1. Handling the emotional pressure
The first thing that comes to my mind is how steady Rafa was in his focus compared to the many ups and downs of Roger.
A five-set match can be compared to a football game in which both teams are going to work through strong and weak periods. The high times Roger went through were in the first set, until 5-2, and also in the third set.
What ended him in this final is the length of his weaker moments: seven consecutive games lost from 5-2 to 5-7 0-2 at the start of the match, a bad period which cost him a seemingly unloseable first set.
He also hit eight consecutive unforced errors between 6-5 15-0 and 4-0 in the tie-break which cost him the second set.
On the Spaniard's side, it's all about mental regularity. Dominated when Roger was on a strong period, he took the lead each time the Swiss suffered a letdown.
It's also to be noted that when Rafa was up on the scoreboard he looked very confident, as a player who was remembering all the good memories of his previous battles with Federer. Each time Roger had an opportunity to really take the lead he broke down, like the respect he has for a rival who beat him so often was taking over.
He seemed to be panicking, going from bad choice to bad choice, like those crossed charges to the net from too far back. He committed error after error too, getting rid of the ball as if he lacked any solutions.
At the end of the day, Nadal handled the emotional pressure of the final way better than Federer - he was steadier and less easily taken over by his emotions.
Contrary to the match between Federer and Novak Djokovic, which was a direct confrontation of speed on the baseline, the duel between Nadal and the Swiss was a tactical one.
Rafa had his usual plan in order to force the Swiss to play far from his best. He relentlessly attacked Roger's backhand with high balls, which would also push him out of the court so Roger was forced to play shorter and Nadal could make him run from side to side.
So it was a battle of diagonals: Nadal's forehand to the Federer's backhand and vice versa. But most of the time the match was played on the strongest diagonal, that of the Spaniard. With his topspin on his opponent's backhand, Rafa prevented Roger from being able to attack and stuck him in the corner like a boxer on the ropes.
On the other diagonal, Nadal was also more efficient than the Swiss as he was able to turn his backhand around in order to use his forehand. In most of the cases he won the point, not letting the Swiss get back into it because he was late each time on even the first shot of Nadal.
Right from the start, Federer knew time was playing against him. He knew that the more time that passed, the more his opponent would take over.
So he had a very tiny margin for error, which put even more pressure on his shoulders. When he lost the first set he knew his chances of victory were halved.
When he lost the second one, he had only 10 per cent chance left to win that match. And even when he came back in order to win the third set, he completely ran out of steam in the fourth - all because he cannot last as long as his rival.
Despite falling short in these three areas in the final, the Swiss reassured us during this event. We have rediscovered the Federer that seemed to disappear a year and a half ago, adding fuel to the possibility that he was suffering from a back injury which was never acknowledged.
Faster, crushing and efficient again on his serve, he erased the decline theory. He played an amazingly intense match in order to beat Novak Djokovic in his semi-final.
The Serb, victim of some pride issue, wanted to beat Federer at his own game by taking the ball early and fighting from the baseline, without any gameplan.
And so he let the Swiss show us how well he's still able to play. This is a good sign for the rest of the season, because if Roger can play like this on clay then grass and hardcourts could help him to be a true contender for the other Grand Slams.
Whereas people were announcing there was Nadal-Djokovic on one side and Federer-Andy Murray on the other, the Swiss showed he is still capable of fighting at the top.
Nadal, once again, was outstanding.
He went through some tough times during the tournament, seemingly knocked in the first week by his four losses to Novak Djokovic and especially the last two on clay, on which he has always been the undisputed king.
Pushed by his first two opponents, playing short, without great timing and going for unusual mistakes, even he was saying he couldn't win the tournament. So the way he fought back to life shows once again how brave he is.
He succeeded in rebuilding his confidence, which had fallen so low. Point after point, by fighting in all his matches day after day, he worked on his basics again and again until they improved. Instead of giving up as most players would do in that situation, stopping to train and hoping everything will come back in matches, Rafa worked harder, sweating until the result came.
He rediscovered his best level but has still not resolved the Djokovic issue. The problems caused by Nole are the same today and Nadal will have to find something new if he wants to keep his world number one ranking.
If not, history will repeat itself.