Djokovic's fiancee Jelena Ristic's style secrets revealed

Apart from her master's degree in management, Novak Djokovic's fiancee Jelena Ristic was also a swimsuit model, it has been revealed.

Ristic, who just got engaged to the world's No. 1 tennis player, now spends a lot of time hanging out with billionaires and looking amazing in couture.

Her black-tie wardrobe is better than possibly everyone's in Hollywood, as she spends a lot of time in formalwear on the arm of her handsome man.

According to People magazine, you'll see her in Oscar de la Renta, Alexander McQueen, and some perfectly fitted custom pieces at galas all over the globe.

But she tends to keep things sporty and low-key, regardless of the price tag of the gown. Fresh-faced with low-key hair appears to be her beauty MO.

As befitting the fiancee of a tennis superstar, Ristic has a full complement of fun and coordinated tennis gear.

And far be it from her to wear some greasy pony and a sporty visor. Instead she wears a cool fishtail braid and a trendy fedora.

She gets to wear jeans next to Anna Wintour. Very few people get the privilege of sporting denim next to the ice queen editor of Vogue, but La Wintour happens to be a major tennis fan, so apparently Ristic gets to be an exception.

In the front row of Ralph Lauren at New York Fashion Week, she brought her best skinny jeans style, and no one batted an eye.