Tennis star Roger Federer and wife Mirka Vavrinec welcomed twin baby girls into the world last night. Roger Federer posted the following note on his website and Facebook page “I have some exciting news to share with you,” Federer’s Facebook page said. “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.” Mirka Vavrinec and Roger were married this past April.