national tennis center grounds in flushing meadows, new york. this is the men's final, pushed to monday by the inclement weather earlier in the week. rafael nadal won this title a year ago, but now it's djokovic who leads by a set and a break. djokovic seeks his third major djokovic seeks his third major win of the four this year. [the captioning on this program is provided as an independent service of the national captioning institute, inc., which is solely responsible for the accurate and complete transcription of program content. cbs, its parent and affiliated companies, and their respective agents and divisions are not responsible for the accuracy or completeness of any transcription or for any errors transcription or for any errors in transcription.] dick: nadal, who has admitted that he hasn't had a solution, and so far today that is true.

john: one fact is he's got the crowd more and more on his side as they see the potential for this to be one-sided. and that could help him, if he can hang close here in this second set, stay one break second set, stay one break down. john: it literally comes back as soon as you finish your serve, it's right at your feet. dick: to have the confidence to continue to hit out, penetrate, get the ball so deep shot after shot. it's been a sterling it's been a sterling performance by djokovic. dick: fifth game point for nadal, who has saved the break

point in this game. point in this game. another ball on the line. dick: and it's wide. mary: djokovic is gesturing to the fans who are shouting in the middle of the rallies. john: it almost stopped the point, but it ended up his shot was out. dick: djokovic up a set, up a break. break. 4-3 in the second. [ cellphone plays song ] holla... [ buddy ] g-dogg. what's up? you know me, right now i'm just kickin' it. tell me you caught the game last night? huh... yeah... yeah i caught the game.

how 'bout that third quarter call? are you kidding me? yeah, come on, that was ridiculous...ly awesome! oh, and that hit on williams? did you see that? yeah, he's done for the season. ahh...i gotta bounce. [ baby coos ] i got this. [ male announcer ] only at&t's network lets your iphone talk and surf at the same time. at&t. right to your hotel. great. let's do a test shipment first with some stuff that's a little less precious than my clubs. that's not necessary, but... my fiancee's wedding dress. my prototype for cold fusion. and this map to the fountain of youth my friend ponce gave me. [ old man's voice ] i'm gonna need that back, beautiful. [ male announcer ] we understand. nothing's more important than your clubs. let fedex office pack and ship your clubs, luggage, and more. nothing's more important than your clubs. there are over twelve thousand diseases in the world. some take years to diagnose and treat. how can doctors find insights in a body of medical knowledge that doubles every five years?

new solutions based on ibm watson are being developed to help doctors analyze a patient's history, symptoms and the latest medical literature to make faster, more accurate diagnoses. hello. my name is watson. dick: with a 4-3 lead and up a set, djokovic serving here in the second set against nadal. these two men, if you look ahead to 2012, the olympics in london, both came home with medals in beijing. nadal won the gold medal, defeating fernando gonzalez. and in the bronze medal match, djokovic beat james blake of the united states. so nadal a rare career slam

plus a gold medal. john: djokovic tightening up just a bit there. he can sense that he didn't get that double break, a real chance for nadal to find his chance for nadal to find his way back in here. dick: amazing depth, djokovic again. john: when he misses, he misses by about an inch. dick: cbs sports' coverage of the u.s. open is brought to you in 3-d by panasonic wherever available. i was dreaming in 3-d last night that this would be one of the classic matches.

djokovic trying to make it all his show. john: that's a good idea for him to let that ball bounce. nadal not doing enough again. the ball's just coming up too short. that's going to take some pressure off of djokovic. he's pushing nadal around most he's pushing nadal around most of these rallies. mary: he missed it. and he's explaining why. in serbian.

john: a lot of players now go right back up the middle. the opponents are picking up on that. off the overhead. as djokovic tried to do twice there. it's a risky play. it's pretty easy to find an it's pretty easy to find an angle coming close to the net. john: that's too short again. just not getting any depth at all. every rally, you cena dal talking to his camp up there. dick: djokovic halfway to the service line to hit that backhand winner. mary: he's gained control of this court. he's managing it so much better

and pushing nadal back time and again. john: he gets some depth, he can get back in this. mary: even when djokovic gets shoved back behind the baseline, he finds his way back. it's automatic with him. dick: even though he's made twice the number of unforced errors than nadal, 20-10, owns a break lead here in the a break lead here in the second.

john: you see that he can push djokovic back a bit, though, and get on the offensive. he's in way better shape. he didn't go for too much, but he made him hit a tough volley. djokovic didn't really get himself in good position. the racket wasn't prepared early enough. dick: a break point for nadal to get even in the second set. a big, big point for the spaniard. spaniard. he's got it! john: this is where djokovic is thinking a bit like i should have been up 5-2. had the double break. and all of a sudden we've got ourselves a match here again at

4-4. dick: rafa nadal has the crowd riled up. noise just thundering down on noise just thundering down on this blue rectangle. john: that's definitely going to be challenged by that dasm he's not going to buy into what djokovic did, not calling it. this is his last challenge. if he were to lose this one -- even though it's a first point, it's a pretty big one for him. dick: chase review says it was out. john: and he's all out of challenges. got to go with the calls now.

dick: the challenge also for nadal is to hold a serve after the break. the two previous times in the match where he's broken djokovic, he's lost his serve djokovic, he's lost his serve the next game. john: he went for it, all or nothing. wasn't quite there to go as big as he tried. he thought he had it. dick: huge difference. 15-15 or 0-30. 15-15 or 0-30. and here he is in trouble.

dick: father sebastian. mary: he went nuts when nadal broke a couple minutes ago. dick: one of his better serves dick: one of his better serves of the match. dick: he misses that shot again. there's two more break points for djokovic. mary: it's so clearly what he should try to do, get to the backhand so he can get to that forehand, go for his winner. and he's been missing. what expensive errors at this stage of the second set. john: he's so upset with

himself. missed another one. 15 times djokovic has had a chance to break serve in less than two sets. >> fault. john: we may be looking at the greatest returner in the history of our sport right now history of our sport right now the way he's playing. mary: oh boy. dick: three times he's broken djokovic and three times novak has answered breaking right has answered breaking right back.

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dick: a flicker of hope for the rafael nadal fans with a break to 4-4, but quickly that fire extinguished by djokovic, who now serves for a two-set lead.

john: an unbelievable effort by djokovic there to break right back. dick: aerial coverage of the u.s. open tennis championships provided by directv. john: how hard is it going to be for nadal now to hang in and try to win this second set? try to win this second set? very. john: he's got to get out there enough to throw a high lob. get it up higher in the air. if he's forced to go to that one-hander. one-hander. hopefully deep.

john: that was right there for nadal. dick: how many times have we seen him make that running forehand up the line? john: it seems like nine out of 10. gets a whole lot harder when you're playing djokovic. but that is a bad miss there. how did he miss that? that's what he's thinking. that's what he's thinking. not even make him hit a volley. john: he knew to come in there. djokovic lucky a couple times. that ball clipped the tape, went over.

guess what, it is double set guess what, it is double set point for novak. dick: number one confirming why he has been almost unbeatable this year. 63-2, beating the best. now with a two-set lead, a set away from capturing the u.s. away from capturing the u.s. open championship. to challenge ourselves on the most demanding track in the world.

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dick: in the semifinals, novak djokovic dug his way out of a two-set hole and beat federer, saving two match points as well. now it's nadal with that pressure. in order to defend his title successfully, he has to win three sets against djokovic, who's playing at the height of who's playing at the height of his number one game. john: he thought it was going to go on and drop in.

if he would get to a fifth set, i would like nadal's chance. he's maybe the fittest player that's ever played on the tour. the problem is getting there. even winning two sets at this stage after what's happened, the leads that he's had and blown, that bounceback to 4-4 and losing those two games and the crowd was ready to go the crowd was ready to go bananas. dick: djokovic applauding that winning shot from nadal. john: he's probably saying i'll give you a 2-0 lead, ok? dick: that's what happened both sets.

paul simon intently -- mary: he was so good in the tribute yesterday in the celebration. >> fault. mary: so glad we don't have to call it ground zero anymore. call it ground zero anymore. i've always hated that name. john: seems like nadal has decided again he's got to go for it, put more on his shots. certainly that is going to be a key for him. dick: he's had very few easy

service games. has one to open the third, as he holds at love. and now a confident look to the future, presented by lincoln financial group. u.s. open girls championship, grace min, senior in high school, won the u.s. girls' title. she won over caroline garcia. in the boy's championship, oliver golding of great britain won in three sets. two names to follow, as we look ahead to the future of this great sport. novak djokovic, two sets in the novak djokovic, two sets in the bank.

dick: that's quite remarkable. he was 38-2 coming into this championship. he had won 13 straight matches here at the open. and djokovic with the only aces in the match -- well, nadal has won. djokovic now with four. -- has one. -- has one. djokovic now with four.

john: on the outside, he's keeping that facade up that he thinks he can do. but right now inside, there's some inner turmoil with that dasm look at this catch catching the line. beautiful serve. 99 miles an hour, gets the asmse just as important where you place it. and there's a real question if he does have that belief or confidence that he can do it after losing to this guy in five finals. dick: cbs swing vision. mary: it shows how well in control djokovic is. look how far back he's pinned nadal. time and again, nadal is trying to do something from way back in the court. djokovic is going to give

himself many more chances to get to the net. dick: nadal has an easy love game to start this set, so djokovic answers with a love game of his own. djokovic has done well the entire match. whenever nadal seems to have positive results, he comes right back and answers, as has been the case in the three times nadal has broken djokovic and could not consolidate the breaks, djokovic right back to breaks, djokovic right back to take nadal's serve. john: that's an excellent volunteerley.

it's a couple of them. the simple fact is his balls are coming up way too short. djokovic is attacking a lot more than nadal. this is well-handled. he saw this one coming, but that's an excellent shot. he hit it with authority, it surprised nadal. dick: 28-11. that's pretty convincing at the net. john: he just hasn't come in, nadal. there you go. it's been a problem the whole match. he's not winning enough first serves points. and look how many chances djokovic has had to break. that's a lot of pressure on that's a lot of pressure on nadal's shoulders.

john: desperately trying to pump himself up. you feel that you can sense total deflation. it's this roller coaster ride for him and toni. feeling the pain. dick: nadal looking at chair umpire ramos. he thought that that serve he thought that that serve might have hit the line.