City had to battle hard in order to earn a 1-1 draw against Huddersfield Town on Boxing Day.
Wimmer has revealed that his teammates urged Zouma to finish the game despite the Frenchman picking up a hamstring problem.
Wimmer said: "Kurt was struggling but we said, 'Keep going you can't play in the Chelsea game anyway! You have a few days off to rest! We need you.'
"He was doing very well, struggling a little bit, had quite a bit of pain but I think he did very well."