NEW YORK — Top-seeded Novak Djokovic was forced to default from his fourth-round match at the US Open after he accidentally hit a line judge with a tennis ball Sunday.
It was a stunning end to Djokovic’s bid for an 18th Grand Slam title and his 26-0 start to this season.
Djokovic had just lost a game to his opponent, Pablo Carreno Busta, to fall behind 6-5 in the first set. As he walked to the sideline for the changeover, Djokovic smacked a ball behind him.
The ball hit a female line judge, who dropped to her knees at the back of the court. After a discussion of several minutes with officials on court, Djokovic walked over to shake hands with Carreno Busta, and the default was announced.