Serena Williams’ former coach states why ‘rage rooms’ are a bad idea for tennis

Serena Williams’ former coach Patrick Mouratoglou has put forward his case for why ‘rage rooms’ are not good for tennis. The recent ATX Open in Austin, Texas, introduced a ‘rage room’ for WTA players, allowing them to take out their anger in a dedicated private area.

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https://sports.yahoo.com/articles/serena-williams-former-coach-states-223000085.html