Ana Schweinsteiger (Serbian: Ана Швајнштајгер / Ana Švajnštajger; born 6 November 1987), professionally known by her birth name Ana Ivanovic (Ана Ивановић / Ana Ivanović, pronounced [âna ǐʋanoʋitɕ, ǎː-]), is a Serbian former world No. 1 tennis player. She gained the top ranking in 2008 after she won the 2008 French Open, and held it for a total of 12 weeks. She was also the runner-up at the 2007 French Open and the 2008 Australian Open, losing to Justine Henin and Maria Sharapova respectively. She qualified for the year-end WTA Tour Championships three times, in 2007, 2008 and 2014 and won the year-end WTA Tournament of Champions twice, in 2010 and 2011.