Venus Williams defeats her sister Serena in the Rogers Cup semifinal . The unseeded Venus lost the first set of the semifinal matchup on a tie break but battled back to win 6-7 ( 7/2 ) 6-2 6-3 in just over two hours . Venus had n't beaten Serena in a competitive match since 2009 . Serena took first set but Venus battled back to win 6 -7 ( 6 ) 7/2 -2 6-3 .
Venus Williams defeats her sister Serena in the Rogers Cup semifinal . Venus had n't beaten Serena in a competitive match since 2009 . Serena took first set but Venus battled back to win 6 -7 ( 6 ) 7/2 -2 6-3 .