Djokovic sets up final clash with Nadal after beating Wawrinka in ATP World Tour Finals' semis

Defending champion Novak Djokovic has set up a final clash against world number one Rafael Nadal by beating Swiss ace Stanislas Wawrinka 6-3 6-3 in the second semi-final of the ATP World Tour Finals at London's O2 Arena, taking his winning run to 21 matches.

The Serb will play Nadal for the title on Monday as the world's top two meet for the sixth time in 2013.

According to the BBC, Djokovic, who did not hit a winner until the final game of the opening set but was in top form by the closing stages, said that he is looking forward to the final clash as he believes that it is always a thrilling competition between him and the Spaniard.

Djokovic further said that there will no secrets between him and Nadal in the match as they both know each other quite well.

The report mentioned that Nadal earlier beat Roger Federer 7-5 6-3 to close in on the one significant prize he has yet to win.

The Spaniard will however, face a tough task against the in-form Djokovic, who has not lost since his US Open final defeat by Nadal in September and has dominated the indoor season, the report added.