BELGRADE – Serbian tennis player Ana Ivanovic has quit tennis aged 29 with a live Facebook video admitting: “I can’t live up to my high standards anymore”.

Serbia’s former world No 1 who is married to Man Utd midfielder Bastian Schweinsteiger quits after problems with form & injuries.

The Serb topped the world rankings in June 2008, the year she reached the French Open and Australian Open finals.