in Carson, California, saving two match points in the semifinals with huge winner before defeating No. 3 Janković in three sets. In the final, Ivanovic defeated top-10 player Petrova to win the fourth singles title of her career, which raised her ranking to a career-high of world No. 4. In Ivanovic's first three matches at the US Open, she lost only ten games. Venus Williams then eliminated her for the second consecutive time at a major. Ivanovic returned to Europe for three tournaments. At the Tier II Luxembourg Championships, Ivanovic qualified for the Tour Championships by virtue of reaching the semifinals. In the final, Ivanovic rallied from 3–6, 0–3 down to defeat Daniela Hantuchová in two hours and 25 minutes. This was her fifth career title. In the quarterfinals and semifinals she beat Tatiana Golovin and Vera Zvonareva. To end the year, Ivanovic played in the Sony Ericsson Championships in Madrid. Seeded 4th and assigned to the Red Group during the round-robin phase, she defeated world No. 2 Kuznetsova and then Hantuchová in straight sets. She qualified for the semifinals but Sharapova defeated Ivanovic in the final match of the round-robin stage. Because she finished second in her group, Ivanovic played world No. 1 Henin in the semifinals, in which the Belgian won in two sets. Ivanovic finished the year with a career-high ranking of world No. 4. 2008: French Open champion and world No. 1 Ivanovic started the year at the Medibank International, where she made the quarterfinals, eventually losing to world No. 1, Justine Henin, despite having had break points in the third set. As the fourth seed at the Australian Open, Ivanovic made it all the way to the finals, beating top-10 players Venus Williams for the first time in her career, and coming back from a 0–6, 0–2 deficit against Daniela Hantuchová. She was given the nickname "Aussie Ana" during the on-court interview with Todd Woodbridge following the victory over Williams. Ivanovic fell against Sharapova in a tight match in the final where Ivanovic had 0–30 at 5–4 in first set. Her ranking rose to world No. 3, the highest of her career at the time. In Serbia's Fed Cup Europe/Africa Zone Group I D round-robin tie against Poland, Romania and Netherlands Ivanovic won all of her matches, as Serbia advanced to the World Group II playoffs in April. And soon Serbia qualified for World Group