No. 1 seed Novak Djokovic was forced to default from the US Open on Sunday after hitting a line official with a tennis ball during his Round of 16 match.
The incident occurred after Djokovic smacked a ball toward the sideline and it inadvertently hit a lineswoman in the head/neck area and she fell to her knees. Djokovic immediately walked over to the woman and attempted to plead his case with officials about the accident, but the world top-ranked tennis player was ruled out for the rest of the tournament.
Djokovic had just dropped a game in the first set against No.