Novak Djokovic
Novak Djokovic of Serbia reacts during his men's singles quarter-final tennis match against Stanislas Wawrinka of Switzerland at the Australian Open 2014 tennis tournament in Melbourne January 21, 2014. REUTERS/Jason Reed REUTERS

Novak Djokovic remains secretive about his baby's expected due date.

Speaking at the Internazionale BNL d'Italia as reported by Atpworldtour.com, Djokovic kept mum on the topic of Jelena's pregnancy. "I have been told not to say too much," said Djokovic. According to the second-ranked male tennis athlete, he cannot reveal the exact date when will their little arrive, but he said that "it will happen at the end of the year."

Djokovic announced Jelena's pregnancy on social media on April 24.

Read more: Novak Djokovic and Fiancée Jelena Ristic Expecting First Child

Djokovic last competed in the Monte Carlo Rolex Masters. He reached the semifinals but lost to Roger Federer. After the Monte Carlo tournament, he needed to take a break due to a wrist injury and was forced not to participate in the Madrid Open. Djokovic said that it was a "big decision" for him not to play in Madrid but he carefully weighed things out. He didn't want to compromise the risk of not being able to play in future tournaments just to be able to compete in one tournament.

Djokovic's current tournament is the Internazionale BNL d'Italia or the Italian Open. He was seeded second and off to a promising start. Djokovic defeated Radek Stepanek on May 13 to reach the third round of the tournament.

"It was one of the most difficult conditions I've played in my life," Djokovic said on his official website. "Playing when its windy on the court, especially on clay, the clay gets in your eyes," he added. "It was difficult to get any kind of rhythm."

Regardless of what the court condition was, Djokovic managed to beat Stepanek in two straight sets with the final score of 6-3, 7-5.

"It was a little bit frustrating when I dropped serve twice in the second set, but the positive is that I managed to stay mentally tough until the end and win."

Djkovic's next match will be against German Philipp Kohlschreiber on May 15.

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