Was yesterday the day Arsenal became true title contenders? Or was it just a blip for eventual winners Manchester City?
Either way, the Gunners' four-point gap at the top of the Premier League cannot be ignored. Arsenal opened up that gap with their gritty 1-0 win at Leeds United, and hours later, City failed to move back to within a point of the Gunners as they suffered their first defeat of the season at the hands of Liverpool.
It was a shock loss for City against a Liverpool side who have been out-of-form this season, with just two wins from eight games before this clash. It showed that Pep Guardiola's side can be beaten, but did it raise alarm bells for the heavy title favourites?