World No. 1 Ashleigh Barty capped off her breakthrough 2019 season in style on Sunday when she defeated Elina Svitolina, 6-4, 6-3, to win the WTA Finals Shenzhen on her debut.

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Twitter reacted to the Australian's latest accomplishment, with a few legends sending their warm wishes to the French Open champion.

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Barty becomes the first female Australian to end the year as No. 1, and finishes the season with the most wins at 56. She still has the Fed Cup final to play this weekend in Perth.

Social media world
reacts to Barty's
WTA Finals triumph

Social media world reacts to Barty's WTA Finals triumph