You can still decide who were the heroes and villains after the Premier League's 'big four' aggressively locked horns on Sunday - by using BBC's Sport's Player Rater.
Rate individuals with marks from one to 10 to show how you think each player performed in Manchester United's win at Liverpool, as well as Arsenal's victory over Chelsea.
Sound simple? It is.
As of 0900 GMT on Monday, William Gallas (7.91) was rated the highest player of the 'big four' clashes - and thus man-of-the-London derby - for his winning goal against former team Chelsea.
Man United's Brazilian maverick Anderson is considered pick of the bunch from the ever-fiery North West derby, with Carlos Tevez and Rio Ferdinand running him close.
Only one Chelsea player - Joe Cole - finished with a rating above six. And, for Liverpool, Dirk Kuyt slumped below 5.00 - and was the lowest rated player of either game. Ouch.
Disagree? Get involved.
SUNDAY'S MATCHES FEATURING PLAYER RATER