Rafael Nadal expresses sympathy for Osaka but says players 'need to be ready' for hecklers – video

Rafael Nadal has said he feels 'terrible' for Naomi Osaka, but admitted the heckling she endured during her straight-sets defeat by Veronika Kudermetova at Indian Wells in California 'happens in the real world'. The 21-times grand slam champion added: 'Even if it's terrible to hear, we need to be prepared.'

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