Swiss tennis player Roger Federer (L) and his girlfriend Mirka arrive for the Laureus Sports Awards in the Mariinsky Theatre in St Petersburg in this February 18, 2008 file photo. Federer is to become a father for the first time, the world number two announced on Thursday. The 27-year-old Swiss revealed on his website (www.rogerfederer.com) that his girlfriend Mirka Vavrinec is pregnant.  [Xinhua/Reuters]