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Shot clock, warm-up clock to be implemented at 2018 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Australian Open 2020: Shot clock rules explained as Novak Djokovic blasts umpire | Tennis | Sport | Express.co.uk
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Australian Open to get shot clocks among other major changes at Grand Slams | Sports News,The Indian Express
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Sharapova, Ivanovic do not like the shot clock - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
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