DNC IN PHILLY: Updates | Live Blog | CBSN | 1010 WINS | WCBS 880
Serena Williams, Novak Djokovic Off To US Open SemifinalsAfter a bad-as-can-be start, dropping the first three games, Serena Williams quickly turned things around and stretched her U.S. Open winning streak to 19 matches to get back to the semifinals.
Azarenka Holds Off Defending Champ Stosur, Advances To Semifinal Top-ranked Victoria Azarenka was pushed to the limit by defending champion Sam Stosur before winning in a third-set tiebreaker at the U.S. Open quarterfinals on Tuesday.

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