Sterling pounced again with Watford still reeling from falling behind, netting from close range in the 50th minute and completing his treble before the hour.
Liverpool welcome Burnley to Anfield on Sunday knowing that any slip-up could be fatal in their bid for a first league title in 29 years.
When Foster was beaten, everyone inside the ground expected the net to bulge, but Aguero somehow headed wide from six yards after he had been picked out on the six-yard line by a delicious cross from Bernardo Silva.
The goal was initially ruled out by the assistant, but the referee opted to overule the decision after a lengthy discussion on the touchline.
Hat-trick hero Raheem Sterling underlined the importance of Manchester City maintaining their "amazing mentality" as they look to make this a season to remember.
'No, I didn't hear what (the referee) was saying but at the time I didn't think I was offside, so I was hoping he did have a long think and give us the goal and that's exactly what he's done, ' the England worldwide told CityTV.
On a landmark day for England strikers, with Harry Kane scoring his 200th goal for clubs and country in Spurs' defeat and Jamie Vardy notching his 100th and 101st for Leicester City in their 3-1 win over Fulham, Sterling took pride of place.
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No one in the Premier League is a poor side and you have to earn the right, I know that and the players know that. And it's where I started my career in Europe. "It's a 24-hour job and it is one that I want to do to my best".
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Manafort was originally to be tried in two different cases, one in Virginia and one in the District. Ellis said that the 19-24.5 years proposed was "excessive" and went with 47 months instead.
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He continued in a follow-up tweet: "I'd like to send my regrets to the Palmer family and the Orlando fans". Tiger Woods last played in the World Golf Championships-Mexico Championship on February 24 in Mexico City.
Two days of damaging headlines, with UEFA and the Premier League opening investigations into City's financial affairs, do not appear to have permeated the Etihad Stadium dressing room.
"In the second, the game changed".
The third goal was Sterling's 15th of the season in the Premier League, and he is just three behind teammate and leading marksman Aguero.
Interpretations of handball were mercifully off the table here but everything about Sterling's opener logically screamed "offside".
"They [the critics] do not give us credit for what we have done, but believe me I don't care".
While the Reds still have a game in hand over the champions, the pressure is gradually being ramped up with every passing game.
- City have won 45 of the 48 points available to them in home games this season (W15 D0 L1).
The latest example of his quality came with an incredible 13-minute hat-trick against Watford.
The introduction of Troy Deeney and Gerard Delofeu immediately paid dividents for the visitors as the pair combined within thirty seconds of coming on for Delofeu to pull one back in the 66th minute.