Toshifumi Kitamura/AFP/Getty Images

Watch: Radwanska kicks off Singapore campaign

Defending WTA Finals champ Agnieszka Radwanska takes the court in Singapore, where Svetlana Kuznetsova awaits. Later, Karolina Pliskova will face Garbine Muguruza (live on ESPN3).

DIRK WAEM/AFP/Getty Images

Gasquet beats Schwartzman to Antwerp title

Third-seeded Richard Gasquet beat unseeded Argentine Diego Schwartzman 7-6 (4), 6-1 to win the European Open final on Sunday and clinch a 14th career title.

Photo/Andy Wong)

Kerber struggles past Cibulkova at WTA Finals

Top-seeded Angelique Kerber struggled to defeat seventh-seeded Dominika Cibulkova 7-6 (5), 2-6, 6-3 on the opening day of the WTA Finals in Singapore on Sunday.

Glyn Kirk/Getty Images

Kuznetsova wins Kremlin Cup, makes WTA Finals

Svetlana Kuznetsova secured the last spot at the WTA Finals in Singapore after defeating Daria Gavrilova of Australia 6-2, 6-1 on Saturday to retain her Kremlin Cup title.

Mike Stobe/Getty Images for USTA
3dPeter Bodo

WTA Finals Singapore preview: What's at stake

The WTA Finals can be no more than icing on the cake for No. 1 Angelique Kerber, but the other women in the field can make a variety of statements at the season-ending event in Singapore.

SVP beseeches Kyrgios to return from suspension and try (0:49)

Wozniacki keeps rolling with Hong Kong win

Former No. 1 Caroline Wozniacki defeated Kristina Mladenovic 6-1, 6-7 (4), 6-2 to win the Hong Kong Open on Sunday, her second title in Asia in the past month.

Defiant Kyrgios throws match (0:23)
Photo/Andy Wong)
17dPeter Bodo

Kerber once again hearing the footsteps of Serena

Angelique Kerber's loss in Beijing has given Serena Williams a chance to regain the No. 1 ranking before the year ends, and you can bet both are feeling the pressure.

17dGreg Garber

The rise of Karen Khachanov not completely unexpected

It has taken patience and then some for Karen Khachanov. But the 20-year-old Russian is finally starting to look like a top-10 player many predict he will become.

Sharapova doesn't believe meldonium is a performance enhancer (1:03)
Sharapova: WADA failed to do their research (0:58)


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Juan Martin del Potro wins his first title since January 2014 with a 7-5 6-1 win over Jack Sock in the Stockholm final.