Alexander Zverev is on the verge of knocking Wimbledon champions Carlos Alcaraz out of the Australian Open.
The German is 2 sets to love up and leads 5-2 in the third with Alcaraz serving.
The winner will play Daniil Medvedev.
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China's Qinwen Zheng is into her first grand slam singles semi final.
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She defeated Anna Kalinskaya in three sets, 6-7, 6-3, 6-1 in Melbourne.
Zheng will face Dayana Yastremska of Ukraine in the last four.
