Andy Roddick has come to Naomi Osaka's defense as the American tennis legend suggests people should be more understanding of the Japanese and the situation she was in, instead of harshly criticizing her.

Naomi Osaka powered into her first National Bank Open semifinal, beating No. 10 seed Elina Svitolina 6-2, 6-2 on Tuesday night.

Naomi Osaka reacts to playing Victoria Mboko in the final of the National Bank Open after Mboko called Osaka her "idol" years back.