Yaya Toure's birthday cake at the Etihad Stadium.
Pep Guardiola has admitted Barcelona and Bayern Munich would have sacked him if he had achieved similar results to those of his disappointing first season at Manchester City.
One of City's longest-serving players, Zabaleta joined City in 2008 and has amassed over 300 appearances for the club.
The midfielder was nearly certain to leave the Manchester club after he was frozen out of the first-team squad by Guardiola in the beginning of the campaign.
City failed to mount a sustained Premier League title challenge and saw their campaign in the Champions League ended at the last-16 stage. In his career at the Etihad Stadium, the 32-year-old player has won two Premier League titles, one FA Cup and two League cups.
Manchester City have lost only one league game on their own territory all season, but have drawn seven times and as Leicester threw players forward in the closing minutes in search of an equaliser, they were in real danger of being pegged back yet again.
City need four points to be certain of a top-four finish and Guardiola is desperate to collect the first of those three against West Brom ahead of City's trip to Watford on Sunday. "I wasn't anxious because I knew I didn't touch it", he told Sky Sports News.
"His impact here was fantastic". Nine years he has been here.
Zabaleta said when he first came to Manchester he felt like when he was in Barcelona at Espanyol. What he and other guys did for the club, helped (make) this club what it is right now.
"He deserves all of the fans to come to the West Brom game".
"Still, I'm pleased with the way we went around it in the second half".
Midfielder Fabian Delph will miss both matches after picking up an injury in training.
Guardiola, meanwhile, remained guarded on the fate of the six out-of-contract players whose futures all remain unclear.
Manchester City kept their hopes of a top-four finish alive and kicking after a hard-fought 2-1 win at home to Leicester on Saturday.
Teams of Tony Pulis, from his history with Stoke and West Brom, never play games thinking they don't matter.
He said: "We talk ever day about what's happened and what we have to do to improve the team. You have to understand how important the game was for everybody", Guardiola said.
"If we didn't play for anything it would be different".