Two goals from David Silva and a Yaya Toure ensured Manchester City kept the points at the Etihad on Saturday lunchtime
Midfielder David Cotterill lit up an otherwise dour SkyBet Championship encounter with a stunning free-kick to earn Birmingham a 1-0 win against Huddersfield.
The swerve on Cotterill's 70th-minute effort appeared to deceive Huddersfield keeper Alex Smithies.
Blues striker Clayton Donaldson was fouled on the right edge of the box by Anthony Gerrard and Cotterill stepped up for the set-piece.
Bournemouth moved a point clear at the top of the Sky Bet Championship table with an emphatic 6-1 thrashing of basement dwellers Blackpool at Bloomfield Road.
Matt Ritchie bagged a brace for the Cherries, while Callum Wilson, Brett Pitman with a penalty, Marc Pugh and Harry Arter also hit the target, with Nathan Delfouneso netting a consolation for the hosts.
Brentford held off Cardiff's second-half fightback to continue their impressive SkyBet Championship promotion push with a 3-2 win at Cardiff City Stadium.
The Bees were coasting after first-half goals from Alex Pritchard, Andre Gray and Jota Peleteiro Ramallo put them in total control.
Craig Noone and Kenwyne Jones pulled goals back for Cardiff, but the visitors held on to make it seven wins from their last eight games.
Cardiff, meanwhile, fall further away from the play-off places as they struggle for consistency under Russell Slade.
Paul Lambert says Ashley Young has admitted to Brad Guzan he fouled Agbonlahor in the challenge that saw Agbonlahor sent off.