Caroline Wozniacki outfoxed Agnieszka Radwanska to set up a semifinal match against Serena Williams in Cincinnati. They just played an epic in Montréal last week.
WTA Staff

CINCINNATI, OH, USA - Caroline Wozniacki battled past good friend Agnieszka Radwanska at the Western & Southern Open on Friday to set up a semifinal encounter against Serena Williams.

Watch highlights, interviews and more video from Cincinnati right here on!

The Plot
Both players came into this match on some major momentum. Radwanska just won her first WTA title of the year at the Premier-level Rogers Cup in Montréal last week, while Wozniacki has been one of the hottest players of the summer hardcourt season, winning 11 of 12 matches since Wimbledon and picking up her own first WTA title of the season at the International-level event in Istanbul.

Radwanska had a few more things going her way going into this match-up, though. Not only was she the higher-seeded player - No.4 to No.12 - but she had also won all three of the pair's meetings since the start of the 2012 season, and winning the last six sets they had played, with no tie-breaks either.

The Turning Point
Wozniacki meant business this time. You can never count a former No.1 out, and she did lead their overall head-to-head, 5-4, and she conjured up some of that magic again to edge Radwanska in a tight two-setter, 6-4, 7-6(5). A gracious Radwanska met Wozniacki with a hug at the net afterwards.

Wozniacki was just the tidier of the two throughout the match, putting together a +4 winners-to-unforced errors differential (23 to 19) while Radwanska ended up with a negative -2 (29 to 31).

By The Numbers
Having beaten both Angelique Kerber and Radwanska here, this is the fourth time Wozniacki has beaten multiple Top 10 players at the same event, and the first time in over three and a half years.

The first three times she achieved the feat came at the WTA Finals in 2009 (Vera Zvonareva and Victoria Azarenka), Tokyo [Pan Pacific] in 2010 (Radwanska and Elena Dementieva) and the WTA Finals again in 2010 (beating three - Dementieva, Zvonareva and Francesca Schiavone).

"We know each other's games so well," Wozniacki said. "I know where she likes to serve. Whenever it gets close, I kind of know her favorite spots. I know obviously that we're going to have long rallies out there. So I just kept grinding and going for it as well. And in the end she tried to be more aggressive and go more for the lines, so it was important for me to keep my head and keep cool out there."

What's Next
Awaiting Wozniacki in the semifinals is No.1 seed Williams, who won her match against No.8 seed Jelena Jankovic earlier in the day (read more about that match here). Williams leads Wozniacki in their head-to-head, 7-1, though in their only meeting this year Williams had to go to the ends of the Earth to prevail in a tight three-setter in Montréal last week (read more about that match here).

"We've always been close, so that doesn't really matter. We're both fighters and once we're on the court we both want to win," Wozniacki said. "She beat me last week 7-5 in the third, which I would like to get my revenge for, but it's going to be tough. She has played really well the last few matches. I'm excited for the challenge - but I need to play up to my best tennis to have a chance to win."