Injuries prompt Ivanovic to retire
Former world No.1 Ana Ivanovic has retired from professional tennis, aged 29.
The Serb, who won the French Open in 2008, has struggled with injury problems in 2016, winning only 15 matches, and did not play on the WTA Tour after the US Open in August.
After suffering a fifth straight loss in the opening round of the US Open in August, Ivanovic insisted she was not thinking of retiring, but subsequently announced she was calling time on her 2016 season in a bid to allow wrist and toe injuries to fully heal.
Ivanovic (below) had posted pictures of herself back in training in December and was one of the highest-profile players to compete in this year's International Premier Tennis League in Asia.
Ivanovic, who married Manchester United midfielder Bastian Schweinsteiger during the summer, was due to begin the new season at the ASB Classic in Auckland, starting on January 2, and was also on the entry list for the Australian Open.