Originally published by Citizen Digital — Read the original article →
World number one Elena Rybakina reached the quarter-finals of the Ningbo Open on Thursday on her return from injury when opponent Polina Kudermetova retired.
The top seed and defending champion was cruising 5-0 in eastern China when the world number 105 from Uzbekistan called it quits because of injury.
Moscow-born Kazakh Rybakina will face Poland’s unseeded Katarzyna Kawa in the last eight.