German tennis player. Born in Tuzla, SFR Yugoslavia, to Serbian father Zoran and Bosniak mother Amira, she moved to Germany at six months old. Petkovic turned professional in 2006 and reached her career-high singles ranking of world No. 9 in October 2011, after reaching the quarterfinals of three Grand Slam events that year.Petkovic suffered three separate injuries in 2012: a back injury in January, an ankle injury in August and a knee injury in December that kept her out for nine months and almost saw her fall out of the top 200. She has won six WTA titles, nine ITF singles titles and three ITF doubles titles. She won the season-ending tennis tournament WTA Tournament of Champions in 2014. Petkovic became the German national champion in 2007 and 2009 and is coached by Eric van Harpen.