DOHA, QATAR - NOVEMBER 01:  Aldo Liguori, head of global public relations for Sony Ericsson, presents Serena Williams a trophy to commerate finishing the year as number 1 in the Sony Ericsson WTA Tour rankings after the final of the Sony Ericsson WTA Championships at the Khalifa International Tennis and Squash Complex on November 1, 2009 in Doha, Qatar. Getty Images logo Getty Images 3 weeks ago

DOHA, QATAR - NOVEMBER 01: Aldo Liguori, head of global public relations for Sony Ericsson, presents Serena Williams a trophy to commerate finishing the year as number 1 in the Sony Ericsson WTA Tour rankings after the final of the Sony Ericsson WTA Championships at the Khalifa International Tennis and Squash Complex on November 1, 2009 in Doha, Qatar.