City will face West Brom without three first team players after boss Manuel Pellegrini delivered a fitness report at Friday's press conference.
Toure is struggling with an Achilles problem, while Kolarov (muscle) and Milner (knee) will not be risked for the lunch-time kick-off.
Manager Pellegrini said at his press conference: “We have three problems. Yaya has a problem with his Achilles tendon so he won’t be there tomorrow.
"Kolarov has a muscle problem and Milner has played with a problem in his knee for the last month, so I don’t think they will make it. All the other players are fit.”
Pellegrini paid tribute to the progress Hart has made during the last two seasons.
The manager added: "He has improved a lot from last year. He was a good goalkeeper, now he is a football player who plays as a goalkeeper."
Pellegrini hinted he may make changes for the Baggies game given the quick turn around from Wednesday night's Champions League fixture.
He said: “It’s not the best moment to play because we haven’t had long to recover. Maybe we are going to refresh the team mentally.
“It’s important to have a good performance and score at the beginning."