It was a pretty spectacular line-up on Arthur Ashe stadium today, don’t cha think?

Props to Caroline Wozniacki for taking care of business in the day’s opening match vs. Vania King. Is anyone else dying to know who her “mysterious” Phone Coach is? I’m guessing someone on the Adidas team who’s still on contract with the company. Sven? Darren? Andre? Who do you think it is?

Caro’s older brother – another coach contender? – was in her press conference today, and part of this funny exchange:

Q. Could you tell us what the best and worst advice you’ve ever received from both of your parents?

CAROLINE WOZNIACKI: Best advice, probably just be happy, enjoy life.

Q. That’s from both of your parents or either?

CAROLINE WOZNIACKI: Yeah. Well, and just if you believe in yourself and go for your dreams. I think that’s pretty much, you know, all the positives. The worst advice my brother is in the back. Maybe he can help me out a little bit.

PATRIK WOZNIACKI: You got some maybe last week from dad.

CAROLINE WOZNIACKI: Okay, change the subject. (Laughter.) I don’t know. I don’t know what the worst is. I don’t know. Well, I guess when you get bad advice it comes in here, it goes out there. So you don’t remember.

Fed followed Woz onto Arthur Ashe, where he had a few tight moments during his 6-3 4-6 6-4 6-2 victory vs. Marin Cilic. I admit, this fragile Fed fan was pretty nervous about this match. Marin has been slumping lately, but he appeared to be in fairly ominous form in the first couple rounds. He played a good match against Roger Federer today and when the young Croatian took the second set I admit I was preparing for the worst. But I survive to frazzle another day. And this day will involve a match vs. Juan Monaco, who took out Tommy Haas.

Serena Williams appeared a bit frazzled during the second set of her 6-1, 7-6 (5) victory vs. fourth seed Victoria Azarenka. After gaining a 5-3 advantage in the second and three match points on Azarenka’s serve, Serena let the lead slip through her sparkly, scarlet red finger tips. Vika gutted out her service game and even more amazing, frustrated Serena’s efforts to serve out the match. When Serena earned match point #4 in the ensuing tiebreak, she grabbed on tight. The No. 28 seed raised a finger in victory. I wonder what that could mean?

AP Photo/Mel Evans via Daylife

Speaking of fingers and former No. 1s, Tennis Channel’s Ted Robinson asked Roger about his famous French open finger wag during an interview today and Roger said it meant that he had “one more match to go” after winning that incredible semifinal vs. Novak Djokovic. Sure, Rog.

“Sloane Stephens is out-steadying Ana Ivanovic. That’s not something I thought I’d see tonight,” said the usually on-the-ball Martina Navratilova during their night match on Arthur Ashe this evening. I was like, “Wait, this is Ivanovic we’re talking about here! The girl who can barely control her fist pumps, let alone her ball toss.” But honestly, I was impressed by Ana’s game. It’s been a long time since I’ve watched her play and she’s gone through a handful of coaches and fitness trainers since the last time I took her seriously. But her forehand looked seriously good tonight and she handled the dual pressures of playing a young, talented American underdog and her first night match in the Big House very well.

But she’s still pretty goofy (check out her giddy, girlie reaction after winning this amazing point – and the “can’t look” challenge.):

So Ana’s won me over again. I’m glad she got some good memories in before Serena tears her apart.

In other results from Saturday: Novak Djokovic rolled over Nikolay Davydenko in straight sets, Jelena Jankovic was “upset” by Anastasia Pavlyuchenkova and forgotten former champ Svetlana Kuznetsova advanced vs. Akgul Amanmuradova.  Jo-Wilfried Tsonga took out Fernando Verdasco in straights and top American Mardy Fish downed Kevin Anderson. My favorite one-handers, Schiavone and Suarez-Navarro (hey, Carla!) both won. Granollers and Berdych contributed to the record number of player retirements this year (click here for more on that), during their respective matches vs. Ferrero and Tipsarevic.