Manchester City goalkeeper Claudio Bravo's debut gaffe was the most-tweeted about moment of the season so far, generating 33,000 posts per minute.
The campaign may only be in its infancy but Saturday's derby had social media alight with activity as Pep Guardiola's men triumphed 2-1 at Manchester United.
Kevin De Bruyne opened the scoring and then hit the post, from which Kelechi Iheanacho tapped home from close range - a moment that led to 24,500 tweets per minute.
However, that paled into insignificance compared to Bravo flapping at Wayne Rooney's free-kick, allowing Zlatan Ibrahimovic to thunder home.