Sony Ericsson Open Tour info:
2009 was another highly-competitive year on the WTA Tour, the battle for the number one ranking between Serena Williams and Dinara Safina keeping tennis fans on their toes for the entire season.
The returning Kim Clijsters threatened to steal Serena's thunder with a sensational comeback win in New York and the season of 2010 promises to be something special after another former number one Justine Henin announced her return to the tour.
The four Grand Slams of the season were shared between three players, Serena reigning in Melbourne and London, Svetlana Kuznetsova prevailing in Paris and Clijsters achieving the unthinkable in New York.
Emerging talents Victoria Azarenka and Caroline Wozniacki also announced themselves as contenders for major honours with three titles in 09, the latter reaching her first Grand Slam final at Flushing Meadows.