At the ripe old age of 25, Caroline Wozniacki doesn't see herself following in the tennis footsteps of best friend Serena Williams.

The Danish star appeared on "In Depth With Graham Bensinger" and talked about her tennis mortality. Yahoo Sports Canada posted video of the interview on Wednesday.

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"It's hard to say, but I don't see myself as playing that much longer," Wozniacki said. "My parents were young parents and I always saw myself as having a pretty big family whenever I retire. Just settle down and live a nice, quiet life. That's kind of what I would love to do whenever I finish."

Wozniacki, ranked No. 1 in the world in 2010 and 2011 without a Grand Slam title on her resume, seemingly was ready for that life last year when she got engaged to Irish golf sensation Rory McIlroy. She talked about being ready to give up the game to focus on becoming a wife and mother.

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McIlroy, however, pulled out the rug from under her dreams, breaking up with her in the spring of 2014.

Wozniacki, who was suffering a hamstring injury, lost in the opening round of the French Open in her next tournament that year, and her ranking fell to No. 16.

She proved herself a fighter, as she rebounded to win a tournament in Istanbul during the summer. She also made it to the finals of the U.S. Open, appearing in only her second slam final. She also advanced to the season-ending WTA Finals (top-ranked Serena beat her in both matches) and finished the year ranked No. 5.

Wozniacki was unable to build upon that success in 2015. She did win an event in Malaysia but didn't reach a Grand Slam final and saw her ranking fall to No. 11.

"As long as I'm feeling the passion for the game, I'm going to continue," she added, sounding less than passionate. "But this is my ninth year on tour. It's a long time already. We'll see. I'm in a good position; I don't have to play. I've earned my money; I've been No. 1. I play because I love to play."

Texans defensive end J.J. Watt provided a brief fling for Wozniacki the past spring, but she doesn't have a boyfriend. If and when she does engage in a serious relationship, it's a good bet that the relationship will put her tennis career to a close.

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