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Continue to ChatEconomist: The new serve clock in tennis appears to be backfiring http://www.tennisabstract.com/blog/2018/08/20/economist-the-new-serve-clock-in-tennis-appears-to-backfiring/
Economist: The new serve clock in tennis appears to be backfiring http://www.tennisabstract.com/blog/2018/08/20/economist-the-new-serve-clock-in-tennis-appears-to-backfiring/