Serena Williams reached the Auckland Classic semi-finals with a straight-set victory over Germany’s Laura Siegemund.
The 23-time Good Slam singles champion beat 73rd-ranked Siegemund 6-4 6-3.
Williams, whose final singles title got right here on the 2017 Australian Open, will play fellow American Amanda Anisimova after she beat Eugenie Bouchard 6-2 3-6 6-4.
Caroline Wozniacki reached the semi-finals with a 6-1 6-4 victory over the 2019 champion, German fourth seed Julia Gorges.
The Dane, who willretire after the Australian Openin Melbourne, will subsequent play unseeded American Jessica Pegula.
Wozniacki and Williams are thru to the doubles final in Auckland after beating Belgian pair Kirsten Flipkens and Alison van Uytvanck 7-6 (11-9) 6-2.
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In Brisbane, world quantity four Naomi Osaka beat Kiki Bertens to save the semi-finals and lengthen her winning dash to 14 fits.
Australian Open champion Osaka defeated Bertens 6-3 3-6 6-3 and can soundless play either Czech Karolina Pliskova or American Alison Riske.
Petra Kvitova, who lost to Osaka within the Melbourne final final year, also reached the final four in Brisbane.
The Czech seventh seed defeated Jennifer Brady 6-4 6-2 to set up a gathering with Madison Keys, who beat fellow American Danielle Collins 6-4 6-1.