2021 Lyon Open may refer to:
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2021 ATP Lyon Open
The 2021 ATP Lyon Open (also known as the Open Parc Auvergne-Rhône-Alpes Lyon) was a men's tennis tournament played on outdoor clay courts. It was the fourth edition of the Lyon Open and part of the ATP Tour 250 series of the 2021 ATP Tour. It ...
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2021 WTA Lyon Open
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