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He is ranked the number-one tennis player in the world, but without a doubt Novak Djokovic's greatest accomplishment was winning the heart of his other half, Jelena Ristic.

The glamorous duo, who have dated for almost five years after being introduced by mutual friends, are the ultimate tennis power couple.

While the tennis champ works hard at perfecting his craft, his biggest fan Ristic is always behind her man, pushing him towards success and also cheering him on at all of his games, including his Wimbledon 2011 final victory.

So it is unsurprising that Serbian Djokovic recently cited Ristic, who is also from his home country, as his greatest support at the Australian Open on at Rod Laver Arena.

But one thing is clear, even though Djokovic is tall, dark and handsome, Ristic undoubtedly wins the courtside show with her effortless beauty.

Gorgeous Ristic may have relatively low profile with the media but stunning looks and unwavering support speaks volumes.

Indeed, behind many a great tennis star there's a beautiful woman, standing by her man in the grandstand.

We have a look at the hottest tennis WAGS cheering their men on.