MELBOURNE - Four-time champion Novak Djokovic's 25-match Australian Open winning streak has been brought to a stunning end by sweet-hitting Swiss Stanislas Wawrinka.
Wawrinka, who went agonisingly close to ending Djokovic's Melbourne Park dominance in a marathon five-setter last year, this time outlasted the world No.2 Serb 2-6 6-4 6-2 3-6 9-7 in exactly four hours.
It puts the eighth seed into a semi-final against Czech seventh seed Tomas Berdych, who earlier pulled off a minor upset of his own, downing world No.3 David Ferrer in four sets.
Both are first-time Australian Open semi-finalists.
Djokovic had won the past three Opens, to go with his 2008 triumph, and was the hot favourite to take the title for a fifth time.