Naomi Osaka wins Australian Open, becomes 1st ever Asian world no. 1
Japan's Naomi Osaka defeated Czech Republic's Petra Kvitova in Australian Open 2019 women's singles final on Saturday to clinch her second consecutive Grand Slam title. The 21-year-old became the first-ever Asian tennis player (male or female) to achieve the world number one singles' ranking. Osaka also became the youngest female world number one since Caroline Wozniacki (20) in 2010.