Jason Szenes/EPA, via Shutterstock
Novak Djokovic’s default from the United States Open after hitting a lineswoman in the neck with a ball that he struck toward the back of the court in frustration is perhaps the most costly one in tennis history.
It fell under the Grand Slam rule book’s definition of “physical abuse,” which states that players “shall not at any time physically abuse any official, opponent, spectator or other person within the precincts of the tournament site.”
The rules subject a player to a fine of up to $20,000 for each violation of this rule, with the possibility of escalation if it is deemed a “major offense.