career-high singles ranking of No. 28 came on 7 November. In addition to Auckland and Stockholm, Srebotnik won doubles titles at Budapest and Hasselt (both with Émilie Loit). She reached the US Open mixed-doubles final (with Nenad Zimonjić, losing to Daniela Hantuchová and Mahesh Bhupathi). 2006 Srebotnik opened the 2006 season with an early exit at the Auckland Open. Two weeks later at the Australian Open, with partner Shinobu Asagoe, she made it to the semifinals in doubles, losing to Yan Zi and Zheng Jie. She won doubles titles in Antwerp (with Dinara Safina) and Amelia Island (with Shinobu Asagoe). At the French Open, she won the mixed doubles championship with Nenad Zimonjić. At the US Open, she reached the doubles final partnering Dinara Safina. In Stuttgart, she reached the semifinals in doubles with Dinara Safina. At the Zurich Open, Srebotnik reached the semifinals of a Tier I tournament for the first time in six years (Pan Pacific Open, Japan). Also, Srebotnik and Liezel Huber reached the doubles final. In her final event of the season at the Linz Open, Srebotnik reached the doubles final with Corina Morariu. 2008 At the French Open, Srebotnik caused an upset when she defeated Serena Williams, whom she had never beaten in four previous attempts, in the third round. At the US Open in the same year, she upset former champion Svetlana Kuznetsova in the third round. On both occasions, she lost to Patty Schnyder in the next round. 2010 In that year, Srebotnik teamed with Květa Peschke, and won the WTA tournaments of Indian Wells (defeating Nadia Petrova and Sam Stosur in the final) and New Haven (defeating Bethanie Mattek-Sands and Meghann Shaughnessy), and reached the final of the WTA Championships in Doha. Srebotnik had an excellent doubles outing at the French Open. In the ladies' doubles, she and Peschke defeated the second seeds Nuria Llagostera Vives and María José Martínez Sánchez in the semifinals, but lost to Serena and Venus Williams in the final. She also partnered with Nenad Zimonjić to win the mixed doubles title with a thrilling tiebreak win against Yaroslava Shvedova and Julian Knowle. Srebotnik and Peschke reached the Rogers Cup doubles final. It was the second time this year that Srebotnik and Peschke reached a final of a Premier-5 tournament after Dubai in February. At the end of the 2010 season, Srebotnik announced that she would focus on