In an eventful game between the top two at the Etihad Stadium, 10-man Arsenal looked like escaping with all three points deep into injury time.
John Stones turned in a rebound from Mateo Kovacic’s shot after Grealish had pulled the back to the midfielder on the penalty spot.
With the Gunners playing with nine players lined up on the edge of the box for virtually the whole of the second half, Quinn believes it was Grealish that was key to finding a small space to exploit.
And the former forward, who made 244 appearances for the Blues, is delighted to see him playing so well, even though he scored for England against his beloved Republic of Ireland in the Nations League last month.
“He kind of kids the defender into lunging at him and I was hoping that something would come from him,” said Quinn, who was a guest on our Matchday Live show from the Etihad.
“The goal came from him because he gets in and he’s clever enough to whip it back to the penalty spot for Kovacic to have the shot and Stones eventually scores.
“Once Grealish came on, you could see Arsenal worrying a little bit, there were two or three big moments before the goal.
“Unfortunately, he got his place back in the England side and scored against Ireland a couple of weeks ago.
“He still retains that craft that when the ball goes to him, it flows – his body movement and drop of the shoulder.
“He doesn’t do it at incredible pace, he’s a craftsman. When he’s doing what he does best, I don’t think there’s anyone better. I love watching him.”
Quinn was impressed by all the wingers with Savinho assisting Erling Haaland for our early opener and the Norwegian’s 100th goal for the Club.
And he thought it was inevitable that Haaland would score wants he was presented with the opportunity as he took his tally to 10 goals already this season.
“Savinho did so well to create it,” Quinn said. “It was an ordinary ball knocked into him but Riccardo Califiori came running into him and he slipped past him beautifully.
“He got away and everything opened up, it was a lovely little flick with the outside of the boot and Haaland passed it into the net with his hand raised in the air before he even took the shot!”
The ex-Ireland, Arsenal and Sunderland striker is also unsurprisingly a huge fan of Haaland and says he has no weaknesses in his game.
“I have so much admiration for him because he makes it all look so easy,” Quinn added.
“There were times when players were swinging at him but he carried on, still looking for the ball.
“His skill level and balance - you think he might be slow at turning, but he’s got everything. Some players are blessed with two or three things but he’s got the lot. Whatever you want from him, he delivers.”
