Serena Williams of U.S. holds her trophy after defeating her sister Venus Williams in the WTA Tour Championships final tennis match in Doha November 1, 2009.(Xinhua/Reuters Photo) Photo Gallery>>>

    DOHA, Nov. 1 (Xinhua) -- Serena Williams put a perfect end to her year as the American stormed to a 6-2, 7-6 win over big sister Venus in the final of the WTA Championships on Sunday.

    Serena, world number two behind Russian Dinara Safina, will bag the top position. She will also pocket the maximum 1.5 million U.S. dollars jackpot after she won all of her round-robin matches on her way to claiming the season-ending showpiece for the first time since her debut in 2001.

    In the match of an hour and a half, Serena broke defending champion Venus twice in the first set and pressed on in the second.

    Serena built a 5-1 lead and although Venus clawed back three points, the 28-year-old completed victory with her fifth ace and a fizzing forehand.

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