LESAProject

To his record line of trophies, comes another set of twin Slam, which the Swiss, once a ball boy, considers bigger than any other. Roger Federer proudly announced late Thursday night that he and Mirka have now officially become parents of twin girls.

In the Facebook and his website, Federer shares his joy with his fans, "“I have some exciting news to share with you: Late last night, in Switzerland, Mirka and I became proud parents of twin girls! We named them Myla Rose and Charlene Riva and they are both healthy and along with their mother, they are doing great. This is the best day of our lives!”

Federer, 27, had been dating Mirka (Miroslava Vavrinec), 31, since they were part of the Swiss national team for 2000 Sydney Olympics, before they married on April 11, 2009, attended by a small group of close friends and family at Wenkenhof Villa, municipal town of Riehen.