The attacker – who was signed in January before seeing out the rest of the European season on loan back at River Plate – came on as a second-half substitute and it wasnt long before he was in amongst the action.
The Argentine pounced on a spilt catch from Reds goalkeeper Adrian to prod home on 70 minutes despite the best efforts of Joel Matip. He was initially flagged offside before a lengthy VAR check overturned the decision to send City fans into a frenzy.
However, it wasnt to be Citys day as Liverpool earned a 3-1 win thanks to Mohamed Salah's 83rd-minute penalty following Ruben Dias handball and Darwin Nunez's stoppage-time debut header. Nevertheless, that didnt stop City fans from praising Alvarez for his significant impact.
Some on Twitter compared his competitive bow to that of City's all-time leading goalscorer Sergio Aguero, who netted on his debut against Swansea in 2011. Upon scoring, the striker hit the classic horned-handed celebration often used by Aguero.
@chappie1963: Alvarez reminds me of Aguero
@SZ_citd: Alvarez had landed!
@Tam_Corleone_: Same vibes as Swansea match, Sergio came off the bench to score on his debut, great start Juli.
@Callum25911: Some player Alvarez presses like Jesus and is like Aguero what more can we want
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