Serbian world No 1 will play in Mubadala World Tennis Championship from December 26-28.
Novak Djokovic confirms return to defend Abu Dhabi tennis title
The world No 1, who beat Nicolas Almagro in the final last year, will return to the UAE capital, a decision he has said was "easy to make".
The three-day tournament, which is not listed as an offical ATP Tour event but nonetheless attracts the world's biggest tennis players, will be held from December 26-28.
Past competitors include Roger Federer, Rafael Nadal and Andy Murray.
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