Arsenal almost clung on for victory against City after going down to 10 men due to Leandro Trossard’s red card, which put the Gunners in a tough position.
Keane said Mikel Arteta’s side had a terrible mentality as they sat back inviting pressure, trying to keep hold of the precious 3 points which in the very end did not work. Arsenal were without Declan Rice, captain Martin Odegaard and a number of other stars which made the tie even harder for the North London side.
The former United midfielder had no sympathies for the side however and said: “They were just booting it, like a small team with a small mentality.
"Go back three or four weeks, Arsenal did the same thing against Brighton with 10 or 15 minutes to go – the goalkeeper went down against Brighton at home.
"This idea that they’ve gone to the great Man City, their mindset against Brighton at home was exactly the same – that’s my argument.
"I’m saying when you’ve got it, still look after it. When you do get it, try and get four or five passes together.
"They were time-wasting against Brighton at home, so forget this idea it was Man City."