Paris: World's top-ranked tennis player Novak Djokovic of Serbia announced Wednesday that his wife Jelena had given birth to a boy named Stefan.

"We are delighted to announce that Jelena Djokovic gave birth to a wonderful, healthy and a lovely boy, called Stefan. The birth went in the best possible manner. The baby and the mother feel well," said an announcement on Djokovic's website, reports Xinhua.