The infamous VAR system intervened on an initial offside call to hand Tottenham a penalty after Harry Kane was brought down by Kepa Arrizabalaga.
Referee Michael Oliver was waiting for the technology to confirm whether the England striker was offside in the build-up.
Sky Sports' cameras appeared to show Kane being played just onside by Marcos Alonso, however, certain other angles suggested the 25-year-old was leaning offside.
The term 'fine margins' certainly comes to mind, with Maurizio Sarri and his team actually showing their own images on a laptop after the game with Kane slightly offside.
It's yet another VAR debacle and there will surely be many more when the technology is implemented in the Premier League next season.
Rory Smith, a journalist for the New York Times, has decided to take it upon himself to share some much-needed perspective on the whole debacle.
He's pointed out that if the margins being argued about are so fine, then the offside law as a whole has taken on a new meaning.
You can read his five-tweet thread below.
The core concept of the offside law was to prevent strikers goal-hanging and in a way, that's how it should still be.
If we're requiring such high levels of technology to assess a situation and still not finding an answer which is correct in the eyes of everyone, then the meaning of the law has been lost.
After the game, Spurs boss Mauricio Pochettino even voiced his discontent with VAR.
"I don't like the VAR," he said, per BBC. "Today we get the benefit of it but after watching the World Cup and another league like La Liga, I see that nobody is happy from day one that they started to use it.
"To get the benefit is nice but I am unhappy to win the game like this.
"We all have to agree - the players, the coaching staff. I watch La Liga every week and nobody is happy, the big clubs and the small clubs. If you are playing to win the title or to stay up, nobody is happy.
"That is a good example for us. We have six months to improve the system and there is a lot of work to do."