Former women's tennis world number one Ana Ivanovic admitted Saturday that she retired this week because she felt both physically and mentally unfit to carry on. <a title="Nadal vs Wawrinka live online, Roland Garros Final" href="http://en.as.com/en/2017/06/11/other_sports/1497167500_564650.html">Nadal-Wawrinka live</a>
AFP
