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The US Open introduced the tiebreak set 50 years ago today - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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US Open 1979 Poster on Display at the Billie Jean King National Tennis Center Editorial Stock Photo - Image of competition, flag: 35563243
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Photos: Sam Stosur vs. Serena Williams, 2011 US Open women's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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