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Tennis Petkovic deeply embarrassed by national anthem cock-up Petkovic deeply embarrassed by national anthem cock-up - AS USA
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US Tennis apologises after playing Nazi-era German anthem at Fed Cup tie: Watch six other occasions when anthems at sports events have gone wrong - Sport360 News
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Tennis Petkovic deeply embarrassed by national anthem cock-up Petkovic deeply embarrassed by national anthem cock-up - AS USA
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US Tennis Association apologises after Nazi-era German anthem sung at tournament | The Independent | The Independent
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Shocking moment Nazi-era German national anthem sung by accident at tennis tournament - Irish Mirror Online
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US Tennis says sorry for using Nazi-era anthem before Germany Fed Cup match | Fed Cup | The Guardian
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