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US Open implements Extreme Heat Policy - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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It's dangerous out there': Players suffer despite heat policy as US Open swelters | US Open Tennis 2018 | The Guardian
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Extreme heat policy in place at Australian Open | 16 January, 2014 | All News | News and Features | News and Events | Tennis Australia
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Australian Open heat rule: What is it and when can matches get SUSPENDED | Tennis | Sport | Express.co.uk
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