Ana Ivanovic gave us a final blow in a rollercoaster 2016 by announcing retirement from tennis in a live Facebook message. Twitter is full of heartwarming wishes from her WTA colleagues, so let's see how they feel about the Serb and her 13-year career. There's also a little bonus in this article: Scroll all the way down to see my three favorite photos depicting the friendship between former world No.1 Ivanovic and current world No.1 Angelique Kerber.
I will miss one of my best friends on tour @AnaIvanovic You've had an incredible tennis career.