Caroline Wozniacki received an offer to pose for Playboy but turned it down, Ekstra Bladet reports.

"I'm not going to take off all my clothes," Wozniacki said.

Her agent, John Tobias, added that the Dane has received a number of offers to pose for men’s magazines, including from FHM and Maxim. “She is still only 20 years," he told the newspaper. "That kind of photo series we’ll keep away from right now. They fit not the right fit with the image she has built."

Wozniacki also says she’s learned to know her real friends from hangers on. "I think that I'm really good at that," she said. "I do not know if it is written on the foreheads of me, but I think that the kind of superficial people can quickly sense to me that they should stay away."—Matthew Cronin