Australian Open tennis: Victoria Azarenka admits she almost choked against Sloane Stephens

By Paul Higham <i>Twitter: <a href=' http://bit.ly/e6TSqR' class='instorylink'>@SkySportsPaulH</a></i>

Thursday 24 January 2013 10:16, UK

Victoria Azarenka admitted she almost choked as she struggled to serve out her Australian Open semi-final victory over Sloane Stephens.