ATP World Tour Finals: World No 1 Novak Djokovic targets more success in London

Novak Djokovic has set his sights on securing a hat-trick of ATP World Tour Finals in London after enjoying a successful campaign on the indoor hard courts.

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The 2012 and 2013 champion is currently on an impressive 27 match unbeaten run indoors after retaining his Paris Masters title last week.

And now the Serb will be aiming to end the season on a high by holding off Roger Federer at the top of the rankings and securing his seventh title of the year by winning on the banks of the River Thames.

"It definitely encourages me the fact that I have played so well [in Paris] and that I have won the past four indoor tournaments in the past two years that I've played," the 27-year-old told atpworldtour.com.

"From outdoor hard court that was my most successful and most preferred surface, now I guess it's an indoor court. I do feel very comfortable playing, returning, serving in these conditions."

Fond memories

Djokovic also has fond memories of London, having won the last two season ending finale's against Roger Federer and Rafael Nadal respectively at the O2 Arena, as well as claiming his seventh grand slam title at Wimbledon in July.

"Two successive titles in London in the past two years give me reason to believe that I can do well," added the top seed.

"I have a week off to recharge my batteries, recover a little bit, spend some time with family, and get on the court.

"I'm excited to be there, because I think it's one of the most spectacular tennis venues that we have. People in London love tennis and have appreciation for this sport. So I look forward to that."

Djokovic has been drawn in Group A and will face US Open champion Marin Cilic on Monday. He has a perfect 10-0 win record against the big-hitting Croatian.