A trio of women near the top of the rankings are immersed in their pre-season training.

World No. 7 Petra Kvitova is prepping for the first Grand Slam of the season, where she reached the final in 2019.

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World No. 4 Simona Halep is eager for a new season with a familiar face back on her team, Darren Cahill.

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She and Cahill worked together for four years before taking a break in 2019.

And Karolina Pliskova is also busy back on court. At least all three WTA stars are in warm, tropical places.

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The WTA season starts in January in Brisbane, Auckland and Shenzhen.