Tennis: Frustrated Osaka looking for answers after opening defeat

U.S. -

U.S.—Naomi Osaka was left frustrated with her performance after she opened her debut WTA Finals tournament with a 7-5 4-6 6-1 defeat against Sloane Stephens, the U.S. Open champion admitting she never really felt comfortable against the American.

Tennis: Frustrated Osaka looking for answers after opening defeat. Naomi Osaka was left frustrated with her performance after she opened her debut WTA Finals tournament with a 7-5 4-6 6-1 defeat against Sloane Stephens, the U.S. Open champion admitting she never really felt comfortable against the American.