Jelena Jankovic with Turkish player Cagla Buyukakcay at announcement day activities in Istanbul.
Jelena Jankovic has qualified for the WTA Championships in every one of the last four years.
Victoria Azarenka, Vera Zvonareva and Jelena Jankovic posed on a boat on the Bosphorus Strait.
Vera Zvonareva posed along the area that forms part of the boundary between Europe and Asia.
Vera Zvonareva, Victoria Azarenka and Jelena Jankovic posed during the Championships announcement.
The three WTA stars posed alongside the president of the Turkish Tennis Federation, Ayda Uluc.
Stacey Allaster and Andrew Walker of the WTA at the TEB-BNP Paribas WTA Championships announcement.
The three WTA stars at the Sinan Erdem dome, the site of the TEB-BNP Paribas WTA Championships.
At night, there was a party for the announcement of the new title sponsors for the year-end event.
The TEB-BNP Paribas WTA Championships will be held in Istanbul for three years from 2011 to 2013.
Victoria Azarenka, Vera Zvonareva and Jelena Jankovic with player imagery in the background.
Vera Zvonareva, a former finalist at the season-ending event, spoke at the press conference.
WTA Chairman and CEO Stacey Allaster and Jelena Jankovic at Monday afternoon's announcement.
The players were interviewed by local press and TV during the media's afternoon of activities.
Vera Zvonareva and Jelena Jankovic posed at the Four Seasons, where the media day took place.