Rafael Nadal's victory in the 2013 U.S. Open over Novak Djokovic couldn't have been any sweeter. The Spanish athlete's girlfriend, Maria Francisca Perello, was in attendance during the match, alongside his mother, Ana Maria, and his sister, Isabel. They were all seated in his private box with some of his biggest followers and supporters.

These three women are very special to Nadal. They are always there for him to celebrate his victories and cheers him up on his loses. Indeed, these three women give him unconditional love and support.

Maria Francisca Perello, also known as Xisca, was a close friend of Nadal's sister Isabel. They started seeing each either when they were still teenagers. She has not given an interview but has always been very well-mannered to paparazzis, reporters and journalists that chase her around.

Unlike other tennis athletes' girlfriends, Xisca does not always come to Nadal's matches. She has a full-time job. "I believe Rafa also needs his own space when he is playing. Also, just the thought of having to wait all day for the match to finish kind of tires me out. I think we might stop getting along if I follow him everywhere," she said. She has only been to Nadal's matches at the Barcelona Open, Italian Open, French Open and Wimbledon. So, yes! She has definitely been there to see some of Nadal's biggest wins in the past decade.

Xisca is also a native of Mallorca where Nadal grew up. The couple loves going on vacation together during holidays. They both love the waters too.

Xisca is always going to be part of Nadal's victories. Truly, her continued love and support for his personal life and professional career has helped him throughout the years and has helped him reach this far in tennis history.