Pep Guardiola has admitted he will definitely make changes for Manchester City's Champions League game against Celtic.
The manager told journalists before the final group stage game that while he will bring players into the starting XI, he has yet to make a decision on Sergio Aguero's involvement.
Guardiola also revealed he expects the Scottish champions to pose a good test for his side.
"In Glasgow, they played so aggressive. My impression is very good," he said.
"I don’t know what my colleague will do tomorrow. They are a real good team and it will be a good test for us."
City come into the game on the back of a 3-1 defeat at home to Chelsea, but Guardiola remains satisfied with the level of performance from his players.
"We created an unbelievable amount of chances against one of the best teams in Europe," explained the Catalan.
"I dont have regrets. In general I am so satisfied. We played well. Much better than the last two games away.
"When you play in Champions League and Premier League, at key points you have to be lucky. That’s why you have to improve and mentally be stronger."