In his regular BBC Sport column on football tactics, Robbie Savage takes a closer look at Manchester City's derby win over neighbours and Premier League leaders Manchester United.
I thought City deserved their win. They had more energy, especially in the midfield areas, saw more of the ball and did more with it, especially in the first half.
What City did really well was press United back and force them into mistakes - United gave the ball away a lot.
City's front-four players played a big part in that, covering a lot of ground and working hard defensively as well as when they had possession.
But the key to everything the champions did in attack at Old Trafford was Carlos Tevez, who was the best player on the pitch and the difference between the two teams.
LONE STRIKER TEVEZ LEADS THE LINE
City's line-up, with only one recognised striker in a 4-2-3-1 formation, did not look that attacking at first, but Tevez helped them take control of the game with his play in United's half.
He kept dropping deep to collect the ball and, every time it went into him, he held it up.
His first touch was fantastic and he brought the three players immediately behind him - James Milner, Samir Nasri and David Silva - into the game, and in dangerous positions in the United half too - often in their area.
That trio were industrious and effective, particularly Milner, who seems to be something of an unsung hero for City.
His play down the right when he linked up with Pablo Zabaleta was again superb.
The front-four players of Tevez, Milner, Nasri and Silva took the game to United, and Sergio Aguero continued that when he came on for Nasri and replaced Tevez as City's most advanced forward player, seeing plenty of the ball in and around the United box before he scored City's winner.