The club said last week that striker Gabriel Jesus and defender Kyle Walker tested positive but manager Pep Guardiola refused to divulge the names of the other "three important players" who would not be available for Sunday's match.
Meanwhile, Arsenal have eased fears of being dragged into a relegation battle with a stunning 3-1 win over Chelsea, as Manchester United's Premier League title challenge stumbled after they conceded a late equaliser to draw at Leicester.