Novak Djokovic hit a line judge with a ball he hit out of frustration on Sunday at the 2020 U.S. Open, leading to him defaulting from the tournament (which is completely justified given what's written in the rulebook about "physical abuse").
Djokovic had just been broken by Pablo Carreno Busta in the first set of Sunday's match, falling behind 6-5.
McEnroe, himself no stranger to grand slam defaults, accused Djokovic of making a "rookie mistake" after the incident, which saw the Serb tossed out of the tournament towards the end of his first set against Pablo Carreno Busta.
Consensus among former champions turned pundits and his fellow players was that Djokovic had accidentally hit the line umpire but, while unfortunate, the decision to disqualify him had been correct.
The ball strucka female line judge at the back of the court, apparently in her neck, who then dropped to her knees.
What had been a ideal year on court - Djokovic had won all 26 of his matches before this ill-fated clash with Pablo Carreno Busta - had been far from plain sailing elsewhere.
While he immediately tended to her and apologised, the world No.1 was given his marching orders after tournament officials deliberated for 10 minutes.
Though there did not appear to be anything intentional about it, it is an automatic default if a player strikes a match official on the court.
Friemel revealed: "His point was that he didn't hit the line umpire intentionally. Thank you and I'm so sorry", Djokovic concluded his post.
He then issued an apology on social media. "I think the tournament made the right decision".
"When I heard that the line judge was on the floor I was in shock".
No. Goran Ivanisevic, a former Wimbledon champion and Djokovic's current coach, was defaulted from a tournament in 2000 at Brighton, England, for smashing all his rackets in a second-round match against Hyung-Taik Lee.
King at the time attacked the US Open officialdom and Ramos for implementing the rules without mercy - now she wants the opposite after posting on Twitter that Djokovic deserved to be kicked out of the tournament for his freakish outburst.
"I need to go back within and work on my disappointment and turn this all into a lesson for my growth and evolution as a player and human being", he added in his Instagram statement.
Instead of facing up to the incident, the 17-time grand slam champion got in a auto and drove off straight afterwards, in another act that's seen him come under fire. Now I think it is the time where it gets really interesting.
The US Tennis Association released a statement saying Djokovic would be fined all prize money and lose all ranking points earned during the major.
The top seed on the men's side of the draw, Djokovic was chasing the 18th Grand Slam of his career.
The poll is hardly scientific given it's likely that it is mostly voted on by Kyrgios' supporters who follow him on Twitter and the fact he has confused a line judge with a ball kid.