City swept the champions aside 3-0 last night.
And watching on was Keane, who said on Sky Sports: “I think it is crisis time for Liverpool. They know they can be beaten at Man City, we know it’s a tough place to come and Man City they are showing signs at being back to their very best.
“But to lose seven in 10 and five league losses already this season. It has to be a crisis for a club like Liverpool.
“I thought his assessment of the game today was spot on. I think it was fair, yes the decision went against them but overall, City looked stronger, technically better and they looked much better physically than Liverpool today.
“I thought Liverpool were a really weak team today. They still had moments of course, they’ve got that quality, they can still cause teams problems.
“But defensively, the goals they’re giving away, the decision making. I go back to that word, lack of intensity, lack of energy. They’re chopping and changing, bringing subs on but they just looked really flat."