DOHA, QATAR - NOVEMBER 01:  Aldo Liguori, head of global public relations for Sony Ericsson and Sony Ericsson WTA Tour CEO Stacey Allaster pose with Serena Williams (C) after she was presented 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 27 months ago

DOHA, QATAR - NOVEMBER 01: Aldo Liguori, head of global public relations for Sony Ericsson and Sony Ericsson WTA Tour CEO Stacey Allaster pose with Serena Williams (C) after she was presented 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.