The world tennis number one Novak Djokovic' says preparation over the next two weeks will be key to holding on to top spot in the rankings next year.
The Serb enjoyed some outstanding form in 2011, winning 41 matches in a row and lifting three grand slam titles.
In Abu Dhabi, where he is playing in an exhibition tournament, Djockovic says if he does his preparation in the next two weeks as well as he did in 2011 he's confident that he can still play well.
Djokovic has beaten France's Gaels Monfils to set up a meeting with Roger Federer tomorrow.
The winner will play Nadal or David Ferrer in the final.
Djokovic says he has no plans to play any other tournament before defending his Australian Open crown at the year's opening grand slam starting mid January.