Tennis-Rybakina clinches year-end top ranking with Tokyo second-round win

Elena Rybakina beat fellow Kazakh Yulia ​Putintseva 6-2 6-3 in the ​second round of the Pan ‌Pacific ​Open in Tokyo on Thursday to secure the year-end world number one ranking for the first time, more ‌than a week before the season-ending WTA Finals.