Her first breakthrough came at the 2004 Zurich Open, where she qualified and narrowly was beaten by Venus Williams in the second round in two tiebreak sets. By the age of 18 Ivanovic had already defeated established players, such as Svetlana Kuznetsova, Nadia Petrova, Vera Zvonareva and Amélie Mauresmo. She also has defeated many other past and present top players including Maria Sharapova, Venus Williams, Serena Williams, Dinara Safina, Martina Hingis, Jelena Janković, Agnieszka Radwańska, Caroline Wozniacki, Petra Kvitová, Simona Halep and Victoria Azarenka. When on form Ivanovic is known for her aggressive style of play and impressive forehand, described by Petrova as, “the best out there.”
Ivanovic’s struggles after winning the 2008 French Open have been well documented. After that victory, she was overwhelmed by attention and endured an ongoing period of reduced success, failing to make a Grand Slam quarterfinal in her subsequent 17 Grand Slam tournaments, and dropping as low as No. 65 in the rankings during July 2010. 2014 was a resurgent year for Ivanovic, beginning with her winning the Auckland Open, her first singles title in over two years, before going on to win the Monterrey Open, Aegon Classic and the Pan Pacific Open. Ivanovic qualified for competition in the 2014 WTA Tour Championships in Singapore, and secured a year-end ranking of No.5, signifying her return to the world’s elite.