Novak Djokovic, Rafael Nadal win on return

Serbian tennis player Novak Djokovic celebrates his victory over Slovak tennis player Martin Klizan. Pic/PTI

Acapulco (Mexico): Former World No. 1 Novak Djokovic was made to work hard before finishing strongly to defeat Martin Klizan in straight sets on his return to competition at the ATP Acapulco event on Tuesday.

Spanish tennis player Rafael Nadal celebrates his match against Italian tennis player Paolo Lorenzi. Pic/PTI

Rafael Nadal also made comfortable progress, beating Mischa Zverev 6-4 6-3.

Djokovic showed signs of ring-rustiness before defeating Klizan 6-3, 7-6 (7/4). "I wasn't expecting an easy match," said Djokovic. "The field is very strong and I got a collision in the first round against a guy who is well known for playing his best tennis on the big stage. But it was a good performance. A tough second set but it's exactly what I needed at this moment," Djokovic added.