Hewitt, the 2001 U.S. Open champ, was making a rousing run at age 32 after a slew of injuries. Defending champ Andy Murray defeated unseeded Denis Istomin 6-7 (5), 6-1, 6-4, 6-4.

Azarenka needs only two wins in the elite, eight-player WTA Championships in Istanbul to end 2012 as No. 1. Williams and Azarenka have been drawn into the same round-robin group. Play starts Tuesday.

Victoria Azarenka collapsed and had to be taken off the court in a wheelchair Wednesday, an accident that resulted from a concussion she endured after falling and hitting her head while warming up ...

Victoria Azarenka won't stop dabbing in celebration. By Sean Wagner-McGough Jan 21, 2016 at 12:12 am ET • 1 min read Join the Conversation comments ...

LINZ, Austria -- Top-ranked Victoria Azarenka and two-time former champion Ana Ivanovic won in straight sets Thursday to reach the quarterfinals of the Generali Ladies. Azarenka beat Simona Halep ...

Top-seeded Victoria Azarenka of Belarus successfully defended her Australian Open title, beating sixth-seeded Li Na of China 4-6, 6-4, 6-3 in the final.