Abu Dhabi:
Top-ranked Rafael Nadal and No. 2 Roger Federer are headed back to Abu Dhabi.
Organizers of the Mubadala World Tennis Championship say Nadal and Federer will compete at the tournament scheduled to run over New Year's.
Also on the lineup are Robin Soderling, Tomas Berdych, Jo-Wilfried Tsonga and Marcos Baghdatis.
Nadal won his first title of 2010 in Abu Dhabi earlier this year. He says the Emirati capital "holds great memories" for him and provides good preparation heading into the Australian Open.
The tournament runs from December 30 to January 1.