Novak Djokovic playing carefree ball
NEW YORK -- If Novak Djokovic is feeling the pressure of playing the favorite here at the U.S. Open, he's not showing it.
Thursday afternoon, after a light hitting session before his quarterfinal match against Juan Martin del Potro, he was kibitzing with the security guard outside the locker room.
"Yeah, what's up, boss?" said a smiling, jocular Djokovic. "Hey, boss, what's up? It's all good. It's all good. It's all good."
Six hours later, it was better than good.
In a fierce, sometimes brilliant battle of former U.S. Open champions, No. 2-seeded Djokovic defeated No. 7 del Potro 6-2, 7-6 (3), 6-4. In this three-hour-plus match, Djokovic repeatedly muted del Potro's power with breathtaking defense.
The second set alone required 84 minutes (the second-longest of the year), prompting four-time U.S. Open champion John McEnroe to say from the ESPN2 broadcast booth it was one of the best sets he had ever seen.

Djokovic was still breathing heavily a few minutes after the match.
"Even though it was a straight-sets win," he said, "it was much closer than the score indicated. I was lucky in the second set. I'm really happy to be in the semifinals."
Thus, the draw has delivered on its promise: In Saturday's semifinal, the 25-year-old Serb meets the dogged No. 4 seed David Ferrer, who earlier beat Janko Tipsarevic in a fifth-set tiebreaker. That scintillating match went 4 hours, 31 minutes.
There was a sense of order in the procession to the quarterfinals. Seven of top eight seeds got through, the first time in the Open era it happened at the U.S. Open.
But then No. 1 Roger Federer was taken down by a possessed Tomas Berdych on Wednesday night. It was the first time in nine years that Federer hasn't reached at least the semifinals here. Coupled with the absence of Rafael Nadal and his aching knees -- he played in the final the past two years -- this one feels a little strange.
With Berdych meeting No. 3 Andy Murray in the other semifinal, Djokovic represents the old-school establishment. This was the 10th consecutive Grand Slam semifinal for Djokovic, tying Rod Laver and Ivan Lendl for second on a list that goes back to 1925.
Coming in, del Potro found himself burdened by a daunting disadvantage. He had spent nearly twice as much time on court as Djokovic: 11 hours, 43 minutes compared to only 6 hours, 2 minutes. They split their last two matches, with del Potro winning the Olympic bronze medal match, but Djokovic beating him last month in Cincinnati.
Del Potro came out firing three aces in his first service game, but Djokovic is regarded by some as the best returner the game has ever seen. It took him only one game to solve the riddle. After two unforced errors, del Potro hit a 131-mph bomb, which Djokovic barely got a racket on. But then del Potro shanked an easy forehand into an open court for another error. A forehand winner on a high-hopping ball gave Djokovic the margin he would need to win the first set.
Late in the set, there was a telling moment when del Potro was visited by a flying insect on the baseline. Instead of squashing it or flicking it out of the way, del Potro scraped his racket along the court and the bug eventually climbed on. Del Potro walked to the wall behind the court, then tenderly blew it off and watched it fly away.
There is a giraffe-like quality to the 6-foot-6 gentle giant. An observer might have been moved to wonder: Does he have the killer instinct to win another major? To put it another way, what would Djokovic have done with that bug?
It has been three years since del Potro won the title here. He's the only man not named Federer, Nadal or Djokovic to win one of the past 30 majors. But, set back by a serious wrist injury, he hasn't been to a major semifinal since. Based on his play in the second set alone, however, he'll return to that level next year.
Del Potro broke Djokovic in the very first game, but soon gave it back. Serving to force a tiebreaker, del Potro played as good as he can play. It took more than 17 minutes, but he did it.
"I kept on being positive," Djokovic said. "I had [three] set points and he came up with some big serves and forehands. I'm just happy to get through."
The tiebreaker was terrific, too. It was 3-all when Djokovic stopped playing and challenged a ball that was called good. He was right; it was out, and he led 4-3.
A big serve gave him a 5-3 lead and then the point of the tournament unfurled, a wild, scrambling affair that ended when del Potro's desperate lob sailed long. He hung on the net, head down, heaving, and he must have known it was over. On the next point, it was, when Djokovic's defense turned on a dime into a backhand winner.
The expected break in the third set came quickly, in the first game, and Djokovic was headed home.
Don't look now, but Djokovic has won the past three Grand Slams played on hard courts. The fourth looks entirely doable. What does Djokovic expect?
"Another big battle, obviously," he said. "It's a semifinal and David Ferrer is one of the most consistent players in the past five, six years. People don't talk about him too much, but I expect a great match from him."
Expect one from Djokovic, too.
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U.S. Open 2012 -- Aug. 27-Sept. 9
Women's singles:
Samantha Stosur
Men's singles:
Novak Djokovic
Women's doubles:
Liezel Huber and Lisa Raymond
Men's doubles:
Jurgen Melzer and Philipp Petzschner
Mixed doubles:
Melanie Oudin and Jack Sock
CourtCast
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Day 15
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• Murray beats Djokovic, wins Open
• Garber: No more baggage for Andy Murray
• McManus: Djokovic runs out of steam
• Wilansky: Andy Murray gets the big trophy
• Stats & Info: A first on many fronts
• SportsNation: Best final ever?
• McManus: Serena chasing history
• Serena: Don't hold out top player
• How many more Slams for Serena?
• Tandon: Djoker-Murray the best rivalry?
• Hot Button: Who will win the final?
• Bodo: No secrets in Djokovic-Murray final
• Digital Serve: Men's final preview
• Murray wins U.S. Open title
• 5 things we learned in men's final
• Digital Serve: Murray's 1st Grand Slam
Day 14
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• Serena Williams wins 15th Slam title
• Djokovic beats Ferrer to reach final
• Errani, Vinci win U.S. Open doubles crown
• Garber: Serena's legacy -- sustained excellence
• Fagan: What a summer for Serena
• Garber: Novak Djokovic shines brightly
• Agassi joins Court of Champions
• Tandon: Separating fat from fitness
• Djokovic reaches U.S. Open final
• Digital Serve: Men's final preview
• Catching up with Capriati
• Chris Evert's take on Serena Williams
• 5 things we learned on Day 14
Day 13
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• Murray in final; Djoker postponed
• Women's final postponed
• Garber: Murray beats Berdych, adversity
• McManus: Azarenka a true test for Serena
• Hair-raising reasons for a roof
• Debate: Who will win the women's final?
• Digital Serve: Can Serena be stopped?
• Murray reaches the U.S. Open final
• Five things we learned on Day 13
Day 12
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• Recaps: Men | Women
• McManus: Azarenka making plenty of noise
• Tandon: The grandest of Slams for the Bryans
• Garber: The day Pete Sampras' fire returned
• Bryant: Djokovic toughest when it matters most
• McManus: Tennis pros lean on partners
• Reason behind Louis Armstrong Stadium
• Playbook: Bryans the best twins ever
• A look back at Sampras' final run
• Get kids in shape
• Adena Andrews has a snack
• Five things we learned
• Digital Serve: Men's semifinal preview
• Digital Serve: Women's final preview
• Williams Cruises Past Errani
• Azarenka Beats Sharapova
Day 11
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• Recaps: Men | Women
• Garber: Novak Djokovic playing carefree
• McManus: Ferrer slugs his way to semis
• McManus: Day 12 Preview
• Fagan: Ball boy's goal is to inspire
• Andrews: Graffiti mecca a must-see
• Grantland: The purity of Roddick
• Grantland: How did Berdych beat Federer?
• 5 things we learned on Day 11
• Ferrer-Tipsarvic battle on
• Will we see a boycott?
• Digital Serve: Day 12 preview
• Adam Sandler lights it up
Day 10
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• Recaps: Men | Women
• Garber: Roddick says goodbye for final time
• McManus: Roddick masters the media
• Ubha: Five things we'll miss about Roddick
• Bryant: Roddick, Clijsters leave void
• Andy Roddick photo gallery
• McManus: Sharapova reigns after the rain
• Garber: Light lift for men, Sharapova rolls
• Rank 'em: Top 10 U.S. tennis players
• Garber: College a good investment for pros?
• McManus: Riding Olympic wave
• Del Potro ends Roddick's run
• Roddick's emotional farewell
• Roddick calls it a career
• Roddick's legacy
• Murray escapes Cilic
• Serena crushes Ivanovic
• Sharapova comes back to beat Bartoli
• Digital Serve: Day 11 preview
• 5 things we learned on Day 10
• Federer stunned by Berdych
Day 9
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• Recaps: Men | Women
• Howard: Anonymous Novak?
• Garber: Andy Roddick's fate will have to wait
• McManus: Azarenka prevails under pressure
• Tandon: Conventional is "in" for Serena
• Fagan: King honors Pat Summitt
• Playbook: American Express shows savvy
• Andrews: Harp player for your entertainment
• Azarenka wins a thriller
• Digital Serve: Day 10 preview
• U.S. Open 5 Things We Learned
• John McEnroe On Roddick
Day 8
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• Recaps: Men | Women
• Garber: Andy Murray's confidence swelling
• McManus: Long drought ends for Ivanovic
• McManus: Radwanska labors, loses to Vinci
• Garber: Serena Williams' near-perfect game
• Garber: Fish pulls out of the Open
• Tandon: Gut-check for Andy Roddick
• Andrews: U.S. Open serving up technology
• Mardy Fish withdraws
• Original home of U.S. Open
• What's next for Mardy Fish?
• Digital Serve
• Digital Serve: Day 8 preview
• Serena Williams perfect in win
• 5 things we learned on Day 8
