World No. 1 Novak Djokovic was sensationally disqualified from the US Open after striking a line judge with a ball during his fourth-round match yesterday. This marked  a stunning end to his 29-match winning streak and bid for an 18th Grand Slam title.

Novak Djokovic went 5-6 down in the first set to Spain's Pablo Carreno Busta when he hit a ball in the direction of the female official. It struck her in the throat and she could be heard gasping. Djokovic rushed over to check that she was okay and after a few minutes she got up and walked off the court. Following discussions with the tournament referee, the umpire declared that Carreno Busta had won by default. Djokovic shook hands with Carreno Busta before leaving the court.  Djokovic left the tournament grounds without speaking to the media.

His departure means there is no male player left in the field who has won a Grand Slam singles title. Whoever emerges as champion will be the first first-time major trophy winner in men's tennis since 2014, when Marin Cilic won the US Open.