City have thus won 12 consecutive league victories and have not lost in 21 matches at the Etihad Stadium in all competitions.
And scores of Manchester City supporters rushed onto the pitch after the match ended in raucous celebrations, which the match organizers quickly ended, in a bid to crown the players league champions.
City have 88 points from 36 games, 7 points behind second-placed Arsenal, who have played 37 games.
Coach Frank Lampard’s side froze at 43 points and sit 11th.
Argentina’s Alvarez scored the winning goal in the 12th minute, after powering a powerful ball into goalkeeper Kepa Arrizabalaga’s net.
And Alvarez believed he had added the second goal, before it was canceled due to a handball on Riyad Mahrez.
And with the title decided on Saturday, after Arsenal’s loss to Nottingham Forest, and City set to play two finals to come, in the FA Cup and the Champions League, manager Josep Guardiola has left several of his key players on the bench , including top scorer Erling. Haland.
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