The Argentine forward suffered an abductor injury at the weekend and will now miss out on this crucial Premier League match, with Gabriel Jesus the man likely to start up front in his place.
But although City ultimately emerged with all three points, Watford made the champions fight all the way for victory with Abdoulaye Doucoure's 85th-minute goal ensuring a nervous ending to the game for Pep Guardiola's men.
City next face a trip to Watford in the league before a mouth-watering clash against Chelsea on 8 December.
"We will prepare the game at Watford and watch the games".
"We spoke about it at half-time but my speech was ridiculous", Guardiola said.
Who will come out on top in the battle of the managers Javier Gracia or Josep Guardiola?
Sterling became the first player in Premier League history to net in his first six appearances against a particular club, when he registered in the 3-1 win over Cherries on Saturday.
Guardiola, who has had no personal involvement in the negotiations, said: "I don't have any info about the club, about (there) being trouble with Leroy".
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Macron said he would raise the killing of journalist Jamal Khashoggi with the crown prince on the sidelines of the summit. U.S. stocks closed slightly higher on Friday on market hopes that a compromise could be reached by the two leaders.
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"Winning that way, we suffered a lot in the first half, especially in the last 20 minutes", Guardiola said.
"To have more continuity in our attacking waves you can not lose the ball so many times". I play nine games but many other contenders, our opponents, play nine games too.
Though he scored a hat-trick against Shakhtar Donetsk last month, Jesus has scored only one league goal for City in a largely frustrating season to date.
"But Raheem started a slalom and that action changed the game". I didn't know that.
In Aguero's absence, Sterling produced the game-breaking contribution and moved level with his esteemed team-mate on eight Premier League goals this season.
By contrast, the finish for his goal was relatively straightforward, albeit after a stylish build-up, as he fed a pass for Danilo to shoot, then swept in the rebound after goalkeeper Asmir Begovic has failed to hold the ball.
Wilson was unable to make significant contact with Joshua King's cross, but City did not heed the let-off as the newly-capped England striker powered home a header from Simon Francis' ball into the box. They were taller than us and stronger than us. "It was a good time to score, right on half time". We get enough playing with all the competitions we play in.
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