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Shocking moment Nazi-era German national anthem sung by accident at tennis tournament - Mirror Online
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Horrifying and shocking' - US tennis chiefs apologise after playing Nazi-era anthem before match with Germany - Independent.ie
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US Tennis Association apologise after a Nazi-era national anthem was accidentally sung before Federation Cup match against Germany
![US Tennis Association apologises after Nazi-era German anthem sung at tournament | The Independent | The Independent US Tennis Association apologises after Nazi-era German anthem sung at tournament | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2017/02/12/12/andrea-petkovic.jpg?quality=75&width=1200&auto=webp)