Victoria Azarenka reached her first Australian Open semi-final since winning the title in 2013 when she knocked out third seed Jessica Pegula 6-4, 6-1 on Tuesday.

The Belarusian 24th seed outlasted her American opponent in a marathon 64-minute first set before running away with the second to set up a last-four encounter against Wimbledon champion Elena Rybakina at Melbourne Park.