"We must go into the game and produce a good performance because after that we have to go two weeks without playing and it's a long time on the back of not playing very well," the City boss told Sky Blue World.
"Going to Doncaster it will be a very hard game for us so we, as a group, have got to show the same kind of attitude as we showed against Newcastle on Tuesday.
"But no two games are the same in this league. We will face a different set of problems against Doncaster compared to the ones we faced against Newcastle and we have to face up to that."