Manchester City's victory over Manchester United means that there are still three sides to the unbeaten records in the Premier League.
Liverpool and Chelsea are also suffering defeat, while Fulham, Huddersfield and Southampton have just one win apiece.
Here, Press Association Sport takes a look at five features of the Premier League season so far.
Manchester City have won 10 of their 12 games so far and drawn the other two, having scored 36 goals in the process, 13 more than their closest rivals Liverpool.
Their Manchester derby victory over United is highlighted in the Gulf of Pep Guardiola's side and their city rivals, with the Citizens completing 44 passes in the build-up to the third goal scored by Ilkay Gundogan.
The city has been playing a near-faultless season from the Arsenal and Tottenham.
Biggest let down
After finishing second last year, Manchester United is currently sitting on the table with a goal difference of -1, the lowest in the top 10.
During the 3-1 defeat in the Manchester derby, United were surprisingly lackluster, managing just five shots from open play, of which none were on target.
When asked about their title hopes, manager Jose Mourinho said he thought his team was not going to be relegated after the fourth loss of the season, 12 matches since 1990-91.
Wolves, Bournemouth and Watford have all impressed this season, with the second sitting above Manchester United on goal difference in sixth and seventh place, but Wolves have got some good results against them.
Having got three points against three games against Arsenal, Manchester United and Manchester City after gaining promotion last year, Wolves have impressed in the first part of the season.
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Eden Hazard has scored seven goals for Chelsea this season, and has played a significant role in their unbeaten record.
The Belgian forward also scored a hat-trick in Chelsea's 4-1 home win against Cardiff, and sits just behind Manchester City's Sergio Aguero in the list of top scorers, with one fewer goals and the same number of assists, four.
The Belgian's form has led to links with Real Madrid, but Chelsea boss Maurizio Sarri has said that he can win the ballon d'or at the London club.
Managers in danger
Having lost their last five matches, Fulham manager Slavisa Jokanovic will be looking over his shoulder after just one win all season.
The Cottagers spent over £ 100million in the summer, but things are not quite clicked in west London, with the clubs on just five points from 12 matches, and a goal difference of -20.
Fulham's next match at home to Southampton is a must-win game for the manager, and the club did not show any signs of improvement from a dreadful performance against Huddersfield, when they took on Liverpool.