going to face tomorrow. dick: serena williams after winning wimbledon a year ago and has that tragic accident, cuts her tendon in her foot and here she is back. all she's done this summer is going 17-0. mary: boy, is she back. john: she was on her way when she won that again. be the greatest female player ever to me. and in these fortunate occurrences, life-threatening ones in her case, i think it's a very difficult but it gave you a newfound appreciation for being on the court. that's why you see her so eager so fit. dick: let's get the comments from the two semifinal lists. mary jo fernandez. >> serena, you've been through a lot but you've been dominant, haven't dropped a set. what's it like to be in the semis in the u.s. open? >> it's great. i'm real excited to be here and

i'm just going have fun. >> what challenges can she present? >> she does everything great. so it's going to definiteably a good match. >> how excited are you to get out there under the lights at ashe? >> it's a special moment and i look forward to it. >> caroline wozniacki, world's number one. caroline this is your third consecutive semifinals at the u.s. open. you're going under the lights at ashe what sit about the atmosphere that makes it so special? >> the crowd is always incredible here. the crowd definitely makes it very special. playing in the biggest stadium in the world is definitely, yeah, something -- something everyone wants to do >> and what will you need to do to be successful against serena? >> i definitely need to play my best tennis. i'm going try to move my feet and see what happens. >> dick? dick: move my feet. mary: serena is a remarkable

athlete but by far the worst preinterview of all time. i tried to help mary jo cook up some good questions for you. it doesn't matter. she's just going go out there and do what she does. she's not going talk about it. dick: she's not going to spend any energy. she'll do her talking on the court. john: i cannot blame her for that. we didn't have that back when we were going on the court. mary: how would you have been? john: i would have been grumpy or worse than serena. dick: one thing about this whom's going to turn 30 years of age, serene ea williams will show you her gut feelings. mary: she will. she hasn't yet dropped a set playing the kind of ball to win wimbledon two years ago. what she has shown -- she hasn't even had to get into her best gear. but on the court you get this fierce, positive energy from her. i mean, she's been showing it

every single round. when you see her doing this making shots -- why can't she give that to mary jo? that's what i'm talking about. dick: verbally. mary: but she'll show it out there. it's going to be very, very hard to stop her. dick: caroline wozniacki, number one in the world. she's been badgered by the fact by how can you be number one in the world and not have title. does she have the game to knock off serena? john: historically speaking she's a very good, bordering on great female tennis player. and she's naturally a counterpuncher and she's got to get a bigger game. and the other problem for her when she's gone to that big occasion, she's come up short. you just hit the nail on the head, the pressure of being number one, the expectations and now the question because she hasn't done it. she certainly has been over

powered, the same of what we might see tonight. and last year against zvonareva. this is when it first started. you're the number one player in the world, number one seed, you've got to step it up. and she hasn't been able to since then. certainly she should try to pull that off and it's going to be a very tall order. dick: wozniacki doesn't have the power to create a lot of winners. so what does she do strategically? john: she's got to keep the ball very, very deep. that will be tougher for serena. it will be close, we hope. dick: think it will be close? never mind. mary: of course -- it could be close, absolutely. i mean -- look, she plays in this very safe little harbor. and that's good enough to beat almost anybody. i just don't think it will be good enough to beat serena. she'll have to take some risks, go for some shots and hopefully stay on serve because that's the

single difference between these two. dick: the action that we've enjoyed the two men semifinals, super saturday will continue. serena against wozniacki. ♪ ♪ ♪ [ male announcer ] the stella artois chalice celebrates the beer. and now the new can... ♪ ...celebrates the chalice. the new stella artois chalice can.

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anncr: there's an easier way to save. get online. go to geico.com. get a quote. 15 minutes could save you 15% or more on car insurance. dick: and welcome back. this day started at noon, then the rain.

just reminding us we've been plagued by that. that's why the schedule rearranged. an hour or so late. the first semifinal. djokovic, federer. djokovic saving two match points has advanced to the finals. and it's rafael nadal and murray. they play another long three-hour-plus match before nadal advanced to the finals. and here come the women scheduled to arrive at 8:00. and after 10:00 they're finally on court to decide the second spot in the finals for the women's championship tomorrow to face samantha stosur of australia. serena williams, 29 years of age, born in saginaw, grew up on the public courts of compton, california. now makes her home in florida, home beach gardens. and just has come back with a roar this summer feeling very comfortable and in terrific shape and just beating up on her

opponents. there they are. mary: she only lost a couple of games through the first couple of rounds. then she had to play azarenka. that second set got very interested. she panicked but still got through it in straits. then she beat champion ivanovitch and pavlyuchenkova in straight sets as well. it has been very impressive. dick: only woman not drop a sess. wozniacki, she's the youngest at 21. her parents moved from poland. her father was a soccer star. and she has won more matches and more titles than any woman, 58 matches and six titles this year including new haven. and there's her road. john: well, she also started off with some pretty easy wins but that fourth round that's where it got a whole lot tougher for

wozniacki. a set and and 4-1 down. that was tough for her to hang on and get to this opportunity to play serena williams again. i worry sometimes that she plays too many tournaments even the week before slams, she continues to play. and she's got to pull back so that she can work more on her game to become more offensive to improve that serve. [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 in transcription.] [captioning made possible by cbs sports, a division of cbs broadcasting, cbs broadcasting, inc.] john: serena was number one. so i think wozniacki would appreciate if you said, on the rankings she's won but she really on the minds of the players it's this lady who's the number one player. and clijsters she's fighting to

get there to get that same respect. the way murray has with these other three guys, djokovic, nadal and federer, the rankings don't explain that he's been more consistent like wozniacki. mary: she's been dating of late of rory mcilroy. he said we're the number one in the world. and we both want what each other has. she's going to have to go through serena williams just to get into the final against sam stosur. dick: serena williams will serve to open this semifinal. -- as this match begins at 11 minutes after 10:00 here in new york. dick: the umpire orders play.

dick: by far the biggest serve in the championship. in fact, she has enough aces to rank in the top 10 of the men. john: you can see already how fit she's become and quick she is. her coach has worked with a lot of different athletes. football teams, boxers, basketball teams, etc. dick: there's her 42nd ace. that's one more than tsonga on the men's side. he was number nine.

dick: and another. john: it's a huge weapon to have against any opponent. she can bank winning a couple of easy points with that beautiful serve. wozniacki is going to serve a whole lot harder every time she tries to hold. john: you mentioned wozniacki is the youngest, only 21. still has room and time to get to be a better player. so the best is yet to come for her. dick: that's saying something when you're already number one and you're making millions of dollars.

dick: but she did not have a good prep on the hard court, lost in cincinnati coming in before the win in new haven. john: she works very hard on her conditioning. and if she can go the distance, i was talking to her a couple of days ago and she liked the idea of playing the best of five women's matches. she liked her chances against the other ladies. don't think we'll see that for a while. john: it will be super saturday, sunday for the men and women.

they both played best of five. dick: serena won her first major at 17 years of age. look at her there. 1999 champion. and three years later repeated. she and her sister were the first prime time opponents in history as the united states open went to saturday night prime time for the women's final. 13 in all major titles. sixth all time. this should be an interesting early test. and wozniacki will hold her and wozniacki will hold her serve. dick: it's interesting, the

comments by rafael nadal how sensitive he was as we should be as he commented tomorrow being the 10th anniversary of the 9/11 attack. emotionally, all week long and of course tomorrow. and the court there on the right side a subtle reminder. mary: rafa and his family have gone down to visit ground zero almost every year since it happened and rafa was in madrid when it happened 10 years ago. last year, he said, in my 24 years of life no image has impacted me like that. dick: first chase review and it strikes the baseline for williams.

john: you could see how important the placement of this serve is going to be for wozniacki because she doesn't go above even 100 that often. dick: 72 mile-an-hour serve and creates the error. 30-30. john: serena plant her feet too soon there. not a very good effort looking to take charge, get that quick break. that was a good chance for her.

dick: that was wozniacki's fastest serve, 101. and now she face as break point. mary: serena's been breaking on second serves, serena has been breaking 69% of the time. mary: to be able to test serena's consistency in those long rallies, you've really got to be fast. you've got to stay with those shots of her because she hits with more weighted shot than anybody.

mary: this is her second tournament when serena lost to bartoli. bartoli doesn't hit as hard but she takes the ball so early and she hits it flat and she created angles that were a problem for serena. it will be much more difficult for wozniacki to do that because she stands so much farther back. dick: and saving break point. wozniacki holds. it's 1-1. action on this saturday that was delayed an hour by rain early. samantha stosur in three sets, the heavenly trip by angelique kerr ber ends. th ranked player in the world. djokovic and djokovic is in the

finals to meet rafael nadal. john: you have make a quick adjustment and you could be quicker with a shot like that. not well-handled by wozniacki not well-handled by wozniacki there. dick: serena announced that she was back in top form by winning two tournaments in stanford and

toronto. 17-0 on hard court this summer. john: she hasn't found her range on that shot. and that's what she's going to lead to. there's caroline's father piotr who's coached her now. just her father. but we don't see a coach yet. dick: supposedly there is a mystery coach. not to be announced.

mary: is that why you're leaving us? you're going to start coaching caroline wozniacki. this is all making sense. dick: i was born at night but not last night. i'm going to go a different direction than coaching. 30-30. double falmt faults. john: they had a couple of hours to get amped up and nervous here. see why they haven't started strong, either one of them. getting the butterflies out.

dick: that's nine unforced errors from serena. mary: this is a great pitcher but you need to hit early before the innings get them settled in. dick: first break chance for the dane. dick: first break chance for the john: that ball just dropped in. could have been a huge swing because she was down a break point on a previous service game. this would be a huge boost if she could get an early lead. but i think she thought it was going to go out and look to drop just in.

dick: third ace. john: women are getting taller and taller. many player above six feet. caroline about 5 '9"ish. can't reach that serve. can't reach that serve. perfect placement. dick: the hold, serena, venus williams who won her first round match. we'll be right back as action continues after this word from your local station. [ man ] did we get anything good?

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>> coverage of the u.s. open on cbs sports is sponsored by -- dick: second semifinal for if women. the women's final after nfl football here on cbs around 4:30. each woman has saved a break point and it's wozniacki now. 1-2 in the opening set.

john: that's a nice play by serena. not quite sure what she's asking the ump. use that topspin lob to take chair of this point. wozniacki hustling, scrambling to no aveil. to no aveil. -- avail. dick: 0-30. 254 ball persons. how about denise casteli. broke her leg. had 37 surgeries to repair that leg and they finally had to amputate and here she is as a ball person at the u.s. there's a champion.

attended workouts and made it to the finals and selected to work here in the u.s. open. here in the u.s. open. john: god bless her. john: wozniacki in trouble again. john: she wants to show that she can stick with her from the baseline. she's o just got to make sure that those groundstrokes are deep. short balls that serena's going to eat up.

dick: this is what wozniacki does to much lesser opponents. she's number one. you've got beat her. and she'll keep it in play in the backboard. she's had a couple of break points. two errors from serena. here's the third breaker. dick: that's good defense by wozniacki. john: that's