is an Australian professional tennis player and former cricketer. She is ranked No. 1 in the world in singles by the Women's Tennis Association (WTA) and is the second Australian WTA singles No. 1 after fellow Indigenous Australian Evonne Goolagong Cawley. She is also a top 20 player in doubles, having achieved a career-high ranking of No. 5 in the world. Barty has won eight singles titles and ten doubles titles on the WTA Tour, including one Grand Slam singles title at the 2019 French Open and one Grand Slam doubles title at the 2018 US Open with partner CoCo Vandeweghe. She is also the reigning champion in singles at the WTA Finals.