Serena Williams

Daytona Beach -- Serena Williams, finishing off her most lucrative year in women's tennis with a win at the Sony Ericsson Championships, is again ranked No. 1 in the world.

Doha, Qatar -- Serena Williams beat her sister Venus Williams in straight sets Sunday and won the Sony Ericsson Championships in Qatar, her 35th WTA title.

Doha, Qatar -- Serena Williams has withdrawn from the U.S. Fed Cup tennis final against Italy next week at Reggio Calabria.

Doha -- Serena Williams defeated her sister Venus Wednesday at the Sony Ericsson Championships and also learned she would end the year as the No. 1 player in the world.

Doha, Qatar -- World No. 1 Serena Williams beat Elena Dementieva 6-2 6-4 Thursday, earning a semifinal berth at the season-ending Sony Ericsson Championships at Doha, Qatar.

Doha, Qatar -- Serena Williams defeated her sister Venus Wednesday at the Sony Ericsson Championships and also learned she would end the year as the No. 1 player in the world.

Doha, Qatar -- Serena Williams opened with a win and Venus Williams with a loss Tuesday in the Sony Ericsson Championship -- the year's last event on the women's tennis tour.

Daytona Beach, Fla., Oct. 12: Serena Williams officially retook the No. 1 spot in women's tennis Monday, passing a slumping Dinara Safina.

Beijing -- Serena Williams notched a straight-set victory Tuesday at the $4.5 million China Open, a win that will return her to the world No. 1 ranking.

Beijing -- Top seeds Dinara Safina of Russia and American Serena Williams posted straight-set victories Sunday in the first-round of the China Open in Beijing.