US Open Tennis on Twitter: "HISTORY: #Konta d. No. 9 #Muguruza, 7-6, 6-7, 6-2 in longest women's match since #usopen introduced tiebreak (1970). http://t.co/epaaK8VlNi" / Twitter
![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 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](https://photo-assets.usopen.org/images/pics/large/f_Stosur2011-forehand.jpg)
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
![The US Open introduced the tiebreak set 50 years ago today - Official Site of the 2022 US Open Tennis Championships - A USTA Event The US Open introduced the tiebreak set 50 years ago today - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_OpenCover_1971.jpg)
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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