After the final whistle, Zabaleta was applauded onto the pitch at the end by the entire City squad, accompanied by son Asier and wife Christel and gave a touching farewell message to the adoring home fans who had sung his name from the first whistle to the last.
For the first goal against West Brom, whose ultra-defensive tactics were starting to frustrate City, Aguero came short to receive a pass and carved open the visitors and produced a back-heel flick to play in Kevin de Bruyne, running through from midfield.
In a game that was a must-win for us to secure our spot in the Champions League, the Citizens performed tremendously, especially in the first half.
Manchester City manager Pep Guardiola reacts during the match against West Bromwich Albion.
Pep Guardiola may not have hit the ground running as Manchester City's owners would have hoped but he is seeing out the season in fine form.
The Argentinian defender has spent nine years with the club and has seen it transformed into one of England's best teams.
De Bruyne doubled City's lead within two minutes when he shaped a half-volley inside the right-hand post from the edge of the box.
Data pointJesus' strike here means he has now scored six times in seven league starts.
A firm fan-favourite, he is a player that gets respect from fans and players around the Premier League for his hard-working attitude and the high standards he has held in term of performances in the league for the best part of a decade.
"It was so tough to play that half-an-hour". "Today is probably the hardest moment but it is so special", he said.
"What I saw from outside when I coached against him, he was a guy in the box to score a goal", Guardiola said. Ultimately, the game will be remembered as Pablo Zabaleta's last performance at the Etihad. That's why Pablo Zabaleta, in these kind of things, is so, so important.
But with the end of the season in sight and a place in the Champions League all-but assured for his side, it seems as though he has taken a positive outlook in the final week of the campaign. West Brom: Ben Foster 7, Allan Nyom 6, Craig Dawson 5, Jonny Evans 5, Marc Wilson 4, Claudio Yacob 5, Nacer Chadli 5, Darren Fletcher 5, Jake Livermore 5, Chris Brunt 5, Salomon Rondon 5.