Roger Federer progresses to 30th grand slam final

Defending champion Roger Federer was given a simple passage through to his 30th grand slam final when Chung Hyeon unexpectedly retired in the second set of their semi-final at the Australian Open.

The young South Korean’s run to the last four has been one of the stories of the tournament and he was in big trouble on the scoreboard before he took an injury time-out for treatment to a blister on his foot when trailing 6-1 4-1.