World number one Williams, who leads Kerber by 190 ranking
points, has won the title five times but missed last year's
event through injury.
Kerber, who won her first grand slam title at the Australian
Open in January and who reached the final at Wimbledon, will be
making her fourth appearance in the Oct. 23-30 event, reserved
for the top eight-ranked players of the year.
"I'm very proud and excited to qualify for the BNP Paribas WTA
Finals in Singapore," said American Williams, who will try to
break the Open-era record of 22 grand slam singles titles she
shares with Steffi Graf by winning the U.S. Open which starts
"It is one of the most important events of the year and we all
fight to qualify in the top eight," Germany's Kerber said in a
statement released by the WTA.
"I have great memories from my other experiences at the
tournament and I hope to play some great matches and win the
(Reporting by Simon Cambers; Editing by Clare Fallon)
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