Jelena Ristic, girlfriend of Serbian tennis player Novak Djokovic poses for photographers as she arrives at a fundraising dinner for the Novak Djokovic Foundation in London, girlfriend of Serbian tennis player Novak Djokovic poses for photographers as she
Jelena Ristic, girlfriend of Serbian tennis player Novak Djokovic, poses for photographers as she arrives at a fundraising dinner for the Novak Djokovic Foundation in London. Reuters

As Roger Federer and Novak Djokovic battle it out on Wimbledon's Centre Court, there are two women in particular who will be cheering them on from the players' box.

Anxiously supporting from the stands will be Jelena Ristic, Djokovic's fiancé. The couple will marry later this year, and in April announced on Twitter that they are expecting their first child.

Ristic is the director of the Novak Djokovic Foundation, a charity founded by the couple to help underprivileged children in Serbia. She has a degree in business administration studies from Bocconi University in Milan, and a Master's degree. For the last three years, she has worked as a digital marketing, branding, and communications consultant.

Novak Djokovic of Serbia (L) kisses his fiancee Jelena Ristic (C) after he defeated David Ferrer of Spain in their final match at the Paris Masters men's singles tennis tournament at the Palais Omnisports of Bercy in Paris,
Novak Djokovic of Serbia (L) kisses his fiancee Jelena Ristic (C) after he defeated David Ferrer of Spain in their final match at the Paris Masters men's singles tennis tournament at the Palais Omnisports of Bercy in Paris.
Jelena Ristic (C), fiancee of Novak Djokovic of Serbia, cheers during the final match of the Paris Masters men's singles tennis tournament between Djokovic and David Ferrer of Spain at the Palais Omnisports of Bercy in Paris
Jelena Ristic (C), fiancee of Novak Djokovic of Serbia, cheers during the final match of the Paris Masters men's singles tennis tournament between Djokovic and David Ferrer of Spain at the Palais Omnisports of Bercy in Paris
Jelena Ristic watches Djokovic's men's singles final match against Rafael Nadal of Spain at the Australian Open tennis tournament in 2012.
Jelena Ristic watches Djokovic's men's singles final match against Rafael Nadal of Spain at the Australian Open tennis tournament in 2012.

Roger Federer's wife Mirka, is frequently seen on the ATP circuit, supporting her husband from the stands.

She is a former professional tennis player from Switzerland and reached her career-high WTA singles ranking of number 76 in the world. She retired from the game in 2002 after a foot injury.

Mirka Federer, wife of Roger Federer of Switzerland, applauds as he gives an interview after he defeated Jo-Wilfried Tsonga of France in their men's singles quarter-final match at the Australian Open tennis tournament
Mirka Federer, wife of Roger Federer of Switzerland, applauds as he gives an interview after he defeated Jo-Wilfried Tsonga of France in their men's singles quarter-final match at the Australian Open tennis tournament. Reuters
Mirka Vavrinec, reacts on Centre Court during the match between her husband and Colombia's Alejandro Falla
Mirka Vavrinec, reacts on Centre Court during the match between her husband and Colombia's Alejandro Falla. Reuters
The pressure's too much for Mirka, as her husband competes against Novak Djokovic of Serbia at the ATP World Tour Finals at the O2 Arena in London
The pressure's too much for Mirka, as her husband competes against Novak Djokovic of Serbia at the ATP World Tour Finals at the O2 Arena in London Reuters
Mirka Federer, watches her husband Switzerland's Roger Federer Wimbledon match against Luxembourg's Gilles Muller
Mirka Federer, watches her husband Switzerland's Roger Federer Wimbledon match against Luxembourg's Gilles Muller Getty