US Open Tennis 2015: Men's Final Winner, Score and Twitter Reaction

Novak Djokovic has had Roger Federer's number in major championship settings. That didn't change on Sunday night, as the top seed battled his way to a four-set victory and won the 2015 U.S. Open title.

The victory came by a score of 6-4, 5-7, 6-4, 6-4, illustrating just how back-and-forth and evenly matched the bout became from the very outset. Federer fought tooth and nail with a raucous Arthur Ashe Stadium crowd behind him but couldn't quite do enough to force a final set.

Bleacher Report shared the moment:

The win marks Djokovic's 10th Grand Slam title and second triumph at Flushing Meadows, but winning a major never gets old. He didn't fall to the ground, but following an embrace with Federer, he jubilantly jumped into the crowd to celebrate with his family, friends and team.

Winning a major is sweet no matter whom it comes against, but Djokovic can take some extra pride out of it coming against his greatest rival. He improved to 21-21 all-time against the Swiss legend but was quick to give praise to his opponent, per ESPN:

At the age of 34, Federer has struggled to contend with Djokovic in major best-of-five settings, and that reared its head again early in Sunday's final.

After a three-hour rain delay, Djokovic took to the court and established an early lead.

Even amid a slip and fall that cut his arm and required quick medical attention, Djokovic set the tone early by winning set No. 1, as Jeffrey Eisenband of ThePostGame.com noted:

Although he lost a set for just the first time all tournament long, Federer didn't panic in an early hole to Djokovic. Instead, he settled down and took care of business on his serve, waiting for chances to pounce on the return.

Those chances came and Federer took full advantage, getting back into the match with a resounding 7-5 set win in the second. He took the momentum into the third, but it evaporated as quickly as it came.

Slowly but surely, Djokovic chipped away at his opponent and got him out of his groove. Federer fought to keep the crowd thrilled and stay alive, but he couldn't hold on to the third set and allowed Djokovic ahead in the fourth.

Federer put up one last-gasp effort down 5-4 and nearly forced a break before Djokovic slammed the door shut and won on deuce to claim the title.

Thankfully, though, the match didn't follow with a retirement announcement like in the women's final, as Federer made sure the crowd knew he'd be back in 2016:

Maybe he came up short again in a major final, but it's impossible to deny what Federer has accomplished over the fortnight. As if making it this far without losing a set isn't impressive enough, he went toe-to-toe with Djokovic in one of their most evenly matched bouts yet.

Once again, Federer proved he's one of the chief contenders to Djokovic, and Sports Illustrated's Richard Deitsch got behind him:

Whether he wins another major in his career or not, Federer can rest on some pretty incredible laurels and know he's among the best ever—if not the best. He has 17 major titles and has continually knocked on the door for elusive No. 18.

But the legend opposite him on Sunday just keeps adding to his tally in the hopes of one day surpassing the opponent he just topped. Impressively enough, all but one of Djokovic's titles in Grand Slam play have come in the last five years:

When it comes down to it, Djokovic has just gotten the best of Federer in these situations so often that it's hard to envision Federer breaking through. This is the second time this year that Djokovic has denied him a major title in the final.

At the same time, he's so drastically close that you have to imagine if he can just avoid Djokovic in one major, he'll hoist the trophy.

While Andy Murray, Stan Wawrinka and others continue to show holes, Federer has undoubtedly been the biggest threat beyond Djokovic.

Only time will tell if he can indeed add that 18th title, but it didn't happen on Sunday.