A fired-up Serena Williams shot down last year's finalist Dominika Cibulkova Wednesday to set up an Australian Open semi-final with teen Madison Keys, as defending men's champion Stan Wawrinka crushed Japanese hopes.
Serena Williams of the US celebrates winning her women's singles match against Slovakia's Dominika Cibulkova, on day ten of the Australian Open, in Melbourne, on January 28, 2015
Unlike her earlier sluggish matches, Serena was in the zone from the off against the dangerous Slovak, a steely look in her eyes as she walked onto Rod Laver Arena soon after fellow American Keys knocked out her sister Venus.
The powerful world number one blasted 15 aces to pummel the 11th seed 6-2, 6-2 in just over an hour and make her 26th Grand Slam semi-final. She has gone on to win 18 major titles.