Norrie, meanwhile, will look to continue bid of winning his first ATP singles title when he takes on local hope Ryan Harrison in the semi-finals on Sunday.
John Isner of the USA celebrates defeating Stefanos Tsitsipas of Greece in their men's singles match on the seventh day at the Wimbledon Tennis Championships in London, Monday July 9, 2018.
The hard-serving Isner avenged his only loss to Ebden in five career ATP Tour meetings when the Aussie beat him earlier this year at the Australian Open. Now I'm here and I'm in the quarter-finals.
"I realise I was fortunate today", said Isner, at home in the state where he went to university.
Top seed Dominic Thiem's bid for a third claycourt title of the season came to a halt after he suffered a shock 7-6 (5), 7-6 (7) defeat by Chilean power-hitter Nicolas Jarry.
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In 1980, when Assam saw an anti-illegal foreigners movement in the state, calls to update the NRC rang through the state. Unsatisfied with the minister's response, an unrelenting opposition staged a walkout from the House.
It is Isner's fifth victory at the tournament, having won three times between 2013-15 and in 2017, losing the final in 2016 to Nick Kyrgios.
"I have played really, really well all week".
After reaching the Wimbledon semis earlier this month, Isner is looking for his fifth title at Atlanta.
Berrettini, who won all of his 49 service games in the tournament, said: "It was a really tough match".
"Now, I'm playing in my backyard and he beat me in his backyard".
Isner beat Harrison in the final past year.
Harrison also commented on his win over Chung: 'This is exactly what the doctor ordered for me.