Serbia's Jelena Jankovic cuts her birthday cake on the court after she won a quarter final of the Dubai Tennis Championship against Russia's Anna Chakvetadze in Dubai, United Arab Emirates,Thursday Feb. 28, 2008. Chakvetadze retired due to injury and Jankovic won the match 6-1. AP Photo logo AP Photo 48 months ago

Serbia's Jelena Jankovic cuts her birthday cake on the court after she won a quarter final of the Dubai Tennis Championship against Russia's Anna Chakvetadze in Dubai, United Arab Emirates,Thursday Feb. 28, 2008. Chakvetadze retired due to injury and Jankovic won the match 6-1.