2015 Wimbledon Round of 16 Review and Women's Quarterfinals Preview

Round of 16 Scores:
Men's
(1) Novak Djokovic vs. (14) Kevin Anderson 6-7(8), 6-7(8), 6-1, 7-5
(9) Marin Cilic d. (WC) Denis Kudla 6-4, 4-6, 6-3, 7-5
(4) Stan Wawrinka d. (16) David Goffin 7-6(3), 7-6(7), 6-4
(21) Richard Gasquet d. (26) Nick Kyrgios 7-5, 6-1, 6-7(7), 7-6(6)
Vasek Pospisil d. (22) Viktor Troicki 4-6, 6-7(4), 6-4, 6-3, 6-3
(3) Andy Murray d. (23) Ivo Karlovic 7-6(7), 6-4, 5-7, 6-4
(12) Gilles Simon d. (6) Tomas Berdych 6-3, 6-3, 6-2
(2) Roger Federer vs. (20) Roberto Bautista Agut 6-2, 6-2, 6-3

Women's
(1) Serena Williams d. (16) Venus Williams 6-4, 6-3
(23) Victoria Azarenka d. (30) Belinda Bencic 6-2, 6-3
(4) Maria Sharapova d. Zarina Diyas 6-4, 6-4
Coco Vandeweghe d. (6) Lucie Safarova 7-6(1), 7-6(4)
(20) Garbine Muguruza d. (5) Caroline Wozniacki 6-4, 6-4
(15) Timea Baczinsky d. Monica Niculescu 1-6, 7-5, 6-2
(21) Madison Keys d. (Q) Olga Govortsova 3-6, 6-4, 6-1
(13) Agnieszka Radwanska d. (28) Jelena Jankovic 7-5, 6-4

Women's Quarterfinals Preview
(1) Serena Williams vs. (23) Victoria Azarenka
Serena holds a 16-3 lifetime record versus Azarenka, including a 3-0 record on grass. The last time they faced each other on the surface, Serena routed Azarenka 6-1, 6-2 in the semifinals at the 2012 Olympics (held at Wimbledon).

Azarenka has given Serena all she could handle in three sets in Madrid and the French Open over the past couple of months. However, that was clay.

Azarenka has the power to give Serena trouble with her hard groundstrokes. More than any other player, she needs to limit the unforced errors and double faults. As great of a player Serena is, the last thing Vika needs is to give away free games.

Serena clicked on all cylinders in her round of 16 defeat of Venus. She played a near flawless match that saw her commit only 26 winners and 13 unforced errors. When Serena plays at that level, there isn't anyone on the planet who could beat her.

With such a short turnaround, it will help Serena that she defeated her big sister in straight sets. The last thing she needed was for a nearly three hour battle and to play the following day on short fuel.

There won't be any secrets between the two players. They both bring out the best in each other. They both know what they need to do to win, but in the end, I like Serena to win this match. Despite Serena's mind boggling lapses at times, she is still too consistent.

It will be tough for Vika to return against the greatest serve in the history of the women's game on grass. Plus, Serena possesses an all-around game with her serve, defense, and groundstrokes.

This match will go three sets, but Serena will prevail.

(4) Maria Sharapova vs. Coco Vandeweghe
Vandeweghe has beaten three consecutive seeded players at SW19, but can she make it four?

Vandeweghe and Sharapova will be a battle of power. The question is which person will be able to dictate play and impose her will on the other?

Vandeweghe has gotten free points off her serve at this tournament. In order to beat Sharapova, she will need to keep getting free points. Honestly, I don't know how things will go if she tries to trade blows with Sharapova from the baseline.

Vandeweghe has done a good job of mixing up her serves and speeds to keep the returner off balance. She will need to mix in a dose of slices to keep the ball low on Sharapova to make her generate her own pace and to make her bend low to hit the balls.

For Sharapova, all the pressure will be on her. To borrow a line from Kevin Smith's Clerks, in which Dante (Brian O'Halloran) constantly reminds viewers, "I'm not even supposed to be here today".

Sharapova will need to use her experience to get her through the match. She will need to use her consistency in this match. Vandeweghe is playing the best tennis of her life, but hasn't been able to prove it on a consistant basis.

Sharapova will look to dictate play to push Vandeweghe around from side to side and to try to wear her down over the course of the match.

(20) Garbine Muguruza vs. (15) Timea Baczinsky
Baczinsky is looking to build on her best year on the WTA and a run to the semifinals at the French Open.

Muguruza, while inconsistent, has proven to cause headaches when she's on her game.

Muguruza's aggressive offensive game has translated very well to grass. She will need to remain focused and to play on her terms.

Baczinsky, who could be a winner of both the Comeback and Most Improved Player awards, has been shown nice consistency on the WTA tour this year. Baczinsky looks to have the sort of game that translates all surfaces.

You just don't know what you'll get from Muguruza. If she plays up to her capabilities, this match could be one of the best matches of the year. If not, Baczinsky could win the match within one hour.

(21) Madison Keys vs. (13) Agnieszka Radwanska
The addition of Lindsay Davenport to her team is one of the best things to happen to Keys. She has given her a belief and confidence to take her game to the next level. Keys is looking to advance to her second major semifinal this year.

Keys has benefited from a pair of upsets in her section, but deserves credit for handling her business and advancing.

Radwanska has a huge opportunity to rectify a dismal season thus far. However, she's looking to turn a corner and a win over Keys could put her one win away from reaching her second career Wimbledon semifinal.

In the past, I would have given Radwanska a clear cut advantage because of her consistency. But, she's lost that edge this year and all bets are off.

Keys possesses a the type of aggressive game with a huge serve and big groundstrokes to win a few Wimbledon titles in her career. She's only 20 years old, but like others I've mentioned, needs to consistently do it.

Radwanska won't wow anyone with power, but is more of a finesse type of player who gets a lot of balls in play. She does a good job of making players hit the one extra ball that could be an unforced error.

On track record alone, I would give Radwanska the edge. However, with her drop in form, this will be a very close match. Which player will be more consistent? Keys has been known to play well in one set, but lose focus and intensity in the next set.

Keys has been able to get a little more match play on grass by playing doubles with Laura Robson and mixed doubles with fellow young gun, Nick Kyrgios. Will this extra play affect her energy level or give her more confidence?

In a bit of a contrast of styles, we will see which wins out: Radwanska's finesse or Keys' power?