This year has seen many great tennis matches and moments take place.
2013 has been a season marked by sheer dominance by the world's top three players, which is why the few times they were upset, it was nothing less than a spectacular sight to see.
What we define as a "masterclass" performance in the tennis world is this: Little to no trouble on serve, domination in baseline rallies and a few magical moments to break serve in style.
The following videos display highlights of the top five masterclass showings from the second half of the season thus far.
Surely, you will remember these, as they were not only jaw-dropping matches, but they also took place quite recently. Enjoy.
Considering how well Rafael Nadal played throughout this entire season (starting with his comeback trail on red clay), this match was clearly something else from Juan Martin del Potro.
The Argentine took an early 4-0 lead over the fierce Spaniard, who has definitely given him some trouble in the past.
Del Potro was crushing flat balls to the Nadal backhand and set up easy winners to the forehand side.
Rafa's spin did not intimidate him until the second set, and Delpo was somehow able to fight off all six break points against his serve to close out the match in straight sets.
Rafa lost twice on red clay and twice on hard courts this year—both of those hard-court losses were a result of him getting broken early in each set and being unable to recover from the deficit.
This was a big upset for the young, up-and-coming Canadian player, Vasek Pospisil.
Though he did not break serve many times, he held his own immaculately and dominated Richard Gasquet in nearly all of the baseline points—a feat many players (even David Ferrer these days) are unable to come close to.
He executed brilliantly and his game plan was clear from the start.
Look for him to do big things next year.
Marcel Granollers enjoyed one of his most inspired and successful Major runs ever at this year's U.S. Open.
However, after his multiple five-set victories, he set out to play Novak Djokovic and the result wasn't pretty at all.
Receiving a double bagel and only earning three games against the Serb, his run ended abruptly and Nole must have set out to the practice courts to play a competitive match with his hitting partner.
Djokovic's weapons and speed were a class above Granollers' and he proved why he is one of the best elite athletes in the world.
Tommy Robredo enjoyed a spectacular French Open, decent Wimbledon and wonderful U.S. Open this year.
He took out a surprisingly subpar Roger Federer in the fourth round and prevented that Nadal-Federer clash from happening (why do these tennis players keep doing that to the Fedal fans?).
Going against Rafa, it was evident that he would likely not even take a set, but perhaps nobody saw that final scoreline coming.
He only gave Robredo four games and was relentless in his run to the semifinals (and eventually, the title).
Roger Federer played Adrian Mannarino in a Slam before and that result was not pretty for the Frenchman.
Playing much better tennis in New York this season, one would have thought that he would have brought the fire during this exciting night match. He did not—at all.
Federer fought through a somewhat competitive (but not really) opening set and then cruised for the next two.
His forehands and backhands were firing and his serve was on point the whole night.
The Frenchman gave his best effort, but surely knew he would not be the lucky one to beat Federer in his best ever opportunity to do so.