She's known as a professional tennis player with good looks to match. But nobody knew she could look drop dead sexy as a model.

Professional Danish tennis player Caroline Wozniacki posed in a series of stunning photos to promote her underwear line. Wozniacki said that the range says so much about her and what she is passionate about.

"For me it is very important to wear a good set of underwear. It is just important that you feel comfortable, it looks good, it matches your clothes and makes you feel feminine and sexy as well. I have my name on an underwear collection - it is just fantastic," Caroline said in the video meant to introduce her underwear line.

Caroline looked perfectly fit and toned in the series of black and white photos that were taken for her line. She wore her blonde hair down and messy, which is what attracted her boyfriend as she said.

"I chose to create my own underwear collection for the girl who wants the good looks from fashion, a perfect fit for her body, and a quality that's hard to beat," the 22-year-old tennis player said.

Caroline is currently dating pro golfer Rory Mcllroy. The pair was rumored to be engaged but denied speculations earlier this year.

Wozniacki was a former World No. 1 at the WTA Tour. She was also the first Scandinavian woman to be able to hold a top ranking position. Now, she has ventured to another career that may brand her for being more than just a professional athlete.

View the video below to see Caroline Wozniacki during her sizzling photoshoot.