We have become so accustomed to Lionel Messi scoring great goals through his career that we hardly blink when he scores one now; he has an ability to make the extraordinary look ordinary.
The only blot on a dominant Barcelona performance was an injury to Andres Iniesta, who had to be substituted after 34 minutes with what the club confirmed was a strain in the back of his thigh.
Iniesta now has 10 days to recover before the Champions League second leg against Chelsea.
The Argentine is arguably the best player in the world again at the moment, with Cristiano Ronaldo only just hitting top gear after a poor start - the Portuguese is now up to 16 goals in the league.More news: Oosthuizen fifth as Shubhankar leads WGC Mexico
More news: Oscars 2018: How to watch the Academy Awards livestream
More news: The doctor is in: Uber launches new patient-shuttle service
Atletico threw players forward in the final minutes of the game but could not find the equaliser as Barcelona walked away with the three points.
However, Antoine Griezmann is in red-hot form for the visitors, after netting back-to-back hat-tricks in their last two games.
Atletico took a defensive approach, putting pressure on Barcelona on their side of the field early on and over time taking the battle into enemy territory.
Both teams traded scoring chances, with Sergio Busquets and Messi firing at Jan Oblak's goal and Thomas Partey testing Marc-Andre Ter Stegen in the lone opportunity Atletico had in the first half. Costa, however, had strayed offside and Barca held on for what will surely prove a crucial three points.
At the other end, Kevin Gameiro thought he had snatched a point when he rifled home from close range but Diego Costa had been flagged offside.