Osaka retires in first-round match at National Bank Open

Naomi Osaka, of Japan, returns the ball during a match against Kaia Kanepi, of Estonia, during the National Bank Open tennis tournament in Toronto on Tuesday, Aug. 9, 2022. (THE CANADIAN PRESS/Christopher Katsarov) Naomi Osaka, of Japan, returns the ball during a match against Kaia Kanepi, of Estonia, during the National Bank Open tennis tournament in Toronto on Tuesday, Aug. 9, 2022. (THE CANADIAN PRESS/Christopher Katsarov)