Was it a foul, or wasn't it? What is the point of VAR? And if a foul is committed on Pepe, does it even count as a foul?
The above were just some of the questions posed when Diego Costa hit back for Spain to equaliser against Portugal in Friday's World Cup clash.
Costa went toe-to-toe with his former Madrid derby foe, now at Besiktas, and appeared to shove the veteran defender in the face before shimmying and shooting home to make it 1-1.
Opinion was divided on the goal, with some questioning the purpose of a Video Assistant Referee while others saw a perfectly valid goal.
Take a look at some of the best reactions to Costa's controversial strike and let us know what you think!