Novak Djokovic gets a shot at revenge against Stan Wawrinka in Australian Open semi-finals

By Michael Chammas
Updated January 29 2015 - 1:09am, first published January 28 2015 - 9:59pm

World No.1 Novak Djokovic has revenge in his sights after setting up a semi-final showdown against the man who knocked him out of last year's Australian Open, Stan Wawrinka.