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Novak Djokovic & Roger Federer preview US Open final

US Open Venue: Flushing Meadows, New York, Date: 13 September Coverage: Live radio and text commentary from 21:00 BST

Roger Federer will try to cap a superb run of form with his first major title in three years when he plays Novak Djokovic in Sunday's US Open final.

The Swiss, 34, has not dropped a set since he lost to Djokovic in the Wimbledon final in July and has swept through the draw in New York.

But Djokovic, 28, is on course to win a third Grand Slam of 2015, having only missed out in the French Open final.

The final is scheduled to begin at 21:00 BST, though rain is forecast.

Djokovic expects 'aggressive' Federer

Roger Federer hit 29 winners against Stan Wawrinka

Serena Williams and her pursuit of the calendar Slam dominated the first 12 days of the tournament, but Djokovic is on the verge of bettering her year at the majors.

For the second time in his career, the Serb is within sight of winning three of the four Slams, and for the first time has has reached all four finals.

"Win or lose on Sunday, it still has been so far a great year, my best year alongside 2011," said Djokovic.

"But obviously I'm only thinking about winning that US Open trophy."

Djokovic, who thrashed the defending champion Marin Cilic in the semi-finals, will be up against a man in rare attacking form in Federer.

"I know that he's lately being very aggressive coming to the net, mixing up, and trying to shorten out the points," said Djokovic.

"I think also he improved his speed. His defensive game is better than it was."

Match stats Djokovic won the US Open in 2011 but has lost four other finals Victory would give him 10 major titles, one behind Bjorn Borg and Rod Laver Federer leads their head-to-head 21-20, and 3-2 at the US Open His last Grand Slam title came at Wimbledon 2012 against Andy Murray

Federer ready for 'shoot-out'

Federer will almost certainly have the backing of most of the 23,000 spectators as he attempts to win his first US Open in seven years, and his first major anywhere in three years.

"I definitely think if there would be more on my side that will give me a lift and extra energy and momentum possibly," said the Swiss, looking for his 18th major title.

Since losing to Djokovic in the Wimbledon final in July, Federer has won the Cincinnati title and reached the final in New York without dropping a set.

He beat Djokovic in the Cincinnati final but has not overcome the Serb at a Grand Slam in three years, despite still edging their head-to-head record 21-20.

"I think it's just a straight shoot-out, and I think that's the cool thing about our rivalry," he said.

"It's very athletic. We can both handle whatever we present to one another, it's very even."

Sneak Attack will be back

Boris Becker is not a fan of Roger Federer's new return tactic

"No, it's not disrespectful. Pretty simple."

Federer wasted few words in dismissing the suggestion from Boris Becker, external-link Djokovic's coach, that his new tactic of taking service returns unusually early disrespects opponents.

The Swiss began employing the SABR ('Sneak Attack By Roger'), where he moves in while the server tosses the ball and hits his returns almost from the service line, during the American summer.

Djokovic fell victim to it in Cincinnati, and was not keen to discuss the issue after his semi-final win in New York.

"It worked a couple of times," said the Serb. "It's an exciting shot for him. For the player opposite side of the net, not so much. So I have nothing else to say about that."

So will Federer be deploying the SABR on Sunday?

"I will do it some more. No problem."