Novak Djokovic of Serbia reacts after defeating Sam Querrey of the U.S. at the 2014 U.S. Open tennis tournament in New York, August 30, 2014. REUTERS/Ray Stubblebine
Novak Djokovic is the top-ranked athlete in ATP’s world rankings. Djokovic’s performance on and off the tennis court can also make girls go crazy over him. In 2011, Djokovic posed for Vogue, for a series of snaps. There was one picture of the Serbian athlete where he was wearing nothing but Speedo. Recently, Djokovic also displayed his washboard abs during a vacation in Ibiza. REUTERS

Novak Djokovic and his wife Jelena welcome the birth of their first born child. The World No. 1 took to social media to announce that they are now the proud parents of a healthy baby boy named Stefan.

"Stefan, our baby angel was born," Djokovic wrote on his Official Facebook page. He added that he was "proud" of his wife and thanked their supporters for their "love and support." According to Serbian press RTS, Jelena gave birth on Oct. 21 in Nice, France, which is close to Monaco where the couple lives. It was not revealed how Jelena delivered the baby. It is anticipated that more information will be available soon.

Djokovic announced Jelena's pregnancy on social media in April, seven months after the Serb athlete their engagement. They exchanged vows in July, following Djokovic's successful Wimbledon campaign.

In August, Djokovic has said in an interview prior the start of the US Open that he was ready to become a father. He said that he knew that everything will change after the birth of their first born and he said he was ready to give up tennis as his top priority.

"My priorities, my family, my wife, my future kid," Djokovic said. "You know, tennis is not definitely, not number one anymore."

He revealed that he has been taking tips from people who have children. He wanted to be able to deal with fatherhood so he will be able to manage it with his career and life, in general.

Djokovic now joins Roger Federer and Stan Wawrinka. They are the three players in the top five of world rankings who have children. Federer has four kids, with his two set of twins, Myla Rose and Charlene Riva were born in 2009 and Leo and Lenny were born in May 2014. Wawrinka has one child named Alexia who was born in 2010.

Djokovic is expected to spend more time with Jelena and their baby boy before he flies to Paris for the BNP Paribas Masters, which begins on Oct. 27, ATP reports. Djokovic is 52-8 this season and currently ranks first in the world.