Naomi Osaka and Kei Nishikori have been doing big things to increase the interest in tennis in Asia, most recently starring in a commercial for Japanese food company Nissin's Cup Noodles.

Despite Osaka's shyness at getting close with established stars like the 29-year-old Nishikori, she's made big strides as her star has risen, even joining him on court for an exhibition during the offseason.

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Osaka began her 2019 season in Brisbane, where she reached the semifinals before falling to Lesia Tsurenko. The 20-year-old was brutally honest about her finish there, before pulling out of Sydney:

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Nishikori was also in Brisbane, where he snapped a nine-final losing streak to win his first ATP title since 2016.

At No. 4, Osaka will be seeded four spots higher than Nishikori at the Australian Open. She opens agains Magda Linette while Nishikori will take on a qualifier.

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ATP/WTA Sydney (1/5 to 1/12)

• Stefanos Tsitsipas, Alex de Minaur, Ashleigh Barty and Petra Kvitova headline the Sydney International. Watch live coverage on Tennis Channel Plus.

WTA Hobart (1/5 to 1/11)

• Watch the action from the Hobart International featuring Belinda Bencic and Alize Cornet.

ATP Auckland (1/6 to 1/11)

• See John Isner and Fabio Fognini live on Tennis Channel Plus beginning Monday, Jan. 7 at 6:00 pm ET.

AO Qualifying Rounds (1/8 to 1/11)

• Australian Open officially begins with qualifying action. Tennis Channel Plus has fall the action live! Coverage begins Tuesday, Jan. 8 at 6:00 pm ET.