
Two-time Australian Open champion Victoria Azarenka has turned back the clock to stun world No.3 Jessica Pegula in straight sets and tee up a tantalising semi-final against Wimbledon champion Elena Rybakina.
Azarenka, the 2012 and 2013 Open champion, defeated close friend Pegula 6-4 6-1 to reach the final four in Melbourne for the first time since sealing back-to-back triumphs 10 years ago.