Naomi Osaka blasts Jelena Ostapenko after alleged comments in a heated exchange with Taylor Townsend at the US Open.

Taylor Townsend says Jelena Ostapenko told her she has "no class" and "no education" after the American beat her in the US Open second round.

“She told me I have no class," Townsend said in an on-court interview after her 7-5, 6-1 victory.