PARIS: Serena Williams was confirmed as the world number one despite her defeat against Victoria Azarenka in the Qatar Open on Sunday, as the two rivals swapped places in the latest WTA rankings released on Monday.
The 31-year-old American becomes the oldest ever woman to claim top spot following her run to the Doha final, moving 265 points clear of Azarenka with Russia's Maria Sharapova remaining third.
