MELBOURNE, AUSTRALIA – Naomi Osaka became the world’s No. 1 women's singles player on Monday in the wake of her victory in Saturday's Australian Open final.
The 21-year-old from Japan, who has won the last two Grand Slams, is the first single player from Asia to head the tennis rankings on either the men's or women's tour
Osaka, who earned her first Grand Slam title last September at the US Open, went into the season-opening Grand Slam in Melbourne as world No. 4. She moved up to top the Petra Kvitova of the Czech Republic's rankings after the beating