Such words will be music to ears of City fans, but there is little to put a smile on the face of Watford supporters after a galling afternoon in which substitute Gerard Deulofeu's goal was scant consolation.
Watford had made it tough for City in the first half - certainly more hard than some onlookers had expected when the teams were announced.
Sterling's second goal came quickly after the contentious opener and his third was a smart finish, taking his tally to 18 for the season in all competitions.
"We're just focused on one game at a time".
"He is active and in an offside position so that goal should not stand".
Following prolonged discussions between the match officials, the goal was awarded despite Sterling being in an offside position when Aguero touched the ball into his path, because Janmaat played it against the England winger's shin for the ricochet into the net. I have two years and it is impossible for me to move, unless I get sacked.
And it look to be another tense affair for Pep Guardiola's men after a goalless first half.
"It is hard to understand why we changed so much from the first half to the second".
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"It is the end part of the season so every game is important", Guardiola said.
"If we have made mistakes we will be punished".
Coach Pep Guardiola's men have now opened four points gap pending Liverpool's tie against Burnley at Anfireld on Sunday.
On Friday the Premier League confirmed it had a probe into City under way.
Gracia threw on Deeney and Deulofeu in the 66th minute and it took 17 seconds for them to make an impact, Deeney heading down to the Spaniard who slotted home.
'In this moment, you know we have 26 players available and all of them deserve to play because all of them have competed really well.
Reports revealed that UEFA and the Premier League are looking into a few issues with City regarding FFP regulation breaches, manipulation of the amount of money the club made, and how they've signed underage players.
There seems, however, no hope for Fulham under caretaker manager Scott Parker, after their defeat at Leicester, whose own new boss Brendan Rodgers was grateful for Vardy's late double.
Nicolas Otamendi also headed wide of the far post as Watford struggled to contain a team desperate to improve their goal difference, but City were left to settle for three goals and three points as they took another step forward to retaining their league crown.