Which Williams sister has won more Grand Slam titles?
Which Williams sister has won more Grand Slam titles?
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The two grand slam titles to have been won by Serena Williams are: Australian Open - 2010; US Open - 2009; Wimbledon - 1999, 2002; and Olympic Gold Medal - 2000.
assistant
Did they play double sometimes?
user
The Williams sisters did not play doubles together on the pro circuit.  They did, however, play doubles at the Wimbledon Championships in 1999 and 2002.
assistant
What does it mean by the pro circuit?
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