US Open Tennis 2015: Men's Final Schedule and Predictions

Unpredictability reigned supreme on the women's side of the 2015 U.S. Open draw, but not for the men. Top-seeded Novak Djokovic will face a familiar foe in his fourth Grand Slam final of the year, going up against Roger Federer.

In the 14th all-time meeting between the two living legends in Grand Slam settings, it's hard to argue that more has ever been on the line—although it always seems to be that way. Djokovic is going for the chance to win three majors in a single season, while Federer is still chasing that elusive 18th Grand Slam title.

Let's break down the ins and outs of the matchup below.

2015 U.S. Open Men's Final

Matchup: No. 1 Novak Djokovic vs. No. 2 Roger Federer

Date: Sunday, September 13

Time (ET): 3 p.m.

TV: ESPN

Djokovic vs. Federer Preview

David Goldman/Associated Press

If it weren't for the unbeaten Grand Slam season that Serena Williams was putting up until a day ago, the tennis world would be buzzing over what Novak Djokovic is on the verge of doing.

And now that Williams' Grand Slam pursuit is over, it's beginning to get the appropriate attention. He won the Australian Open and Wimbledon Championships already in 2015, leaving him one win away from notching three majors in a single season.

Djokovic has done this before, but it's only been done six other times in history. And had he been able to beat Stan Wawrinka in the Roland Garros final earlier this year, he'd be on the cusp of the calendar Grand Slam.

If he's going to win three majors again this year and mimic his feat from 2011, he'll have to go up against one of the only players he's below .500 against. Federer has won 21 of their 41 career meetings, which means Djokovic can even the tally with a win Sunday.

There's no doubting Federer has enjoyed the rivalry that has been arguably the most even of his career as well, as U.S. Open noted:

Of course, it's not the typical Federer that Djokovic is facing Sunday. Although he's past his prime in terms of years, Federer has dialed the clock back and is playing some of his best tennis.

That includes an aggressive return move he's been perfecting, which rushes his opponents and could frustrate Djokovic. The Serb is well aware of it, but he is playing coy on how he'll handle it, as he told New York Times' David Waldstein.

Bill Kostroun/Associated Press

“He tried that in Cincinnati,” Djokovic said. “It worked a couple of times. It’s an exciting shot for him. For the player on the opposite side of the net, not so much. So I have nothing else to say about that.”

This is the sixth time already in just this season that Djokovic and Federer have met, and spectacularly enough, they've all been championship meetings. Federer has taken two of the five, but not the one that counted most at Wimbledon.

While a best-of-three is a different story entirely, Federer just can't really hang with Djokovic—who is playing some of the best tennis of anyone in the game's history—in five. Djokovic has bested Federer in six of the last eight meetings in majors.

Don't expect that to change Sunday. Despite Federer's greatness, he won't be able to solve the Djokovic puzzle.

Prediction: Djokovic wins in four sets