Red-hot Wozniacki reaches Pilot Pen final; Fish upsets men's top seed

"I just lost the ball in the sky. I don't know how it happened," she said.

She recovered to break Mauresmo during that game and served out the match.

"I should serve better tomorrow definitely because I think Wozniacki plays more aggressive than Amelie does," she said. "I need to put more first serves in."

Mauresmo, unseeded and ranked No. 33 in the world, was playing in just her second tournament since Wimbledon after being hampered by injuries.

The former world No. 1 said her run in New Haven has done as much for her mentally as physically going into the U.S. Open.

"I wanted to find this adrenaline, these emotions again," she said. "That's also what I was missing. I was not able to find these for the last month or so. And it was pretty frustrating also to be on the court and a little bit like not really finding joy and happiness and motivation."

In the men's draw, Cilic will play for his first career title Saturday after overpowering Gregorc, who had won only four career matches coming into this week.

"At the beginning of the year, my secret goal was to reach my first ATP final, and I'm really glad that I did it," said Cilic. The 6-foot-6 Croat began the year ranked No. 71 and is expected to jump into the top 25 next week.

In the first men's semifinal, Fish dominated the first set and Verdasco did the same in the second. In the final set, Fish got the winning point on Verdasco's ninth double fault of the match.

"I feel like with my serve and my serve game, if I can get two breaks in a set, I'll feel pretty comfortable," Fish said.

Fish, who lost to his good friend James Blake a year ago, is looking for his third singles title, and first since 2006.