On Sunday, Manchester City ran riot against city rivals Manchester United.
Manuel Pellegrini's side simply crushed their not-so-noisy neighbours 4-1 at the Etihad Stadium on Sunday, out-playing their opponents from start to finish with David Moyes' men barely getting a look-in.
The result - and Manchester United's overall performance - came as something of a shock to onlookers, but it's not the first Premier League incident to raise a through eyebrows this season.
Here, GiveMeSport look at five of the biggest shocks in the season so far.
Take a look and see what makes the cut - and feel free to put forward your suggestions for the most shocking incidents so far in the comments box provided…