Manchester City boss Manuel Pellegrini admits it was vital for his side to take all three points against West Bromwich Albion.
The Citizens moved to just two points from Arsenal after the Gunners dropped points away at West Ham United.
And the Chilean praised midfielder Samir Nasri who scored on his first game since returning from injury.
"It is a very important result because Arsenal and West Ham drew today," Pellegrini is quoted as saying by BBC Sport.
"We knew it would be a difficult game, West Brom are not fighting for anything.
"Starting 1-0 behind was difficult.
"I am very happy for Samir Nasri because he as been injured all season. When he played with everyone, our team changed.
"I always talk to players in private, the media will decide if Joe Hart should have done better for the goal.
"I never analyse the referee, I must see the action again. They played very well."