U.S. Tennis: Djokovic disqualified: ball hitting the line referee
[New York joint]
US Open Tennis:
On September 6th, the 7th day was held at the Billie Jean King National Tennis Center in New York.
Fourth round of men’s singles:
Novak Djokovic (Serbia), the first seed in the world ranking
Disqualified for violating the rules of the four major tournaments during a match with Pablo Karenobsta (Spain).
Djokovic:
Immediately after allowing the lead 5-6 in the first set, the ball hit when returning to the bench hit the line referee, and this action was judged to be against the rule.
Chunichi Shimbun Web
https://www.chunichi.co.jp/amp/article/116730
Novak Djokovic apologises after hitting line judge with ball at US Open-BBC Sport
https://www.chunichi.co.jp/amp/article/116730
Novak Djokovic apologises after hitting line judge with ball at US Open – BBC Sport