I just checked on the Beeb site for the Napoli players on Yellow and Red cards
Edit : City have no problems
Here's the score so far.
Y = Yellow
R = Red
N = none
S = served suspension
Player BM(a) BM(h) Villa(h) City(a)
Dzemali Y N N N
Fernandez Y N N N
Zuniga Y/R Y N N
Cavani Y N N N
Cannavaro S Y Y Y
Maggio N Y N Y
Lavezzi N Y N N
Aronica N N Y Y
Inler N N N Y
Cannavaro sat out the game last night
A game in which Schweinsteiger broke his Collar bone. So he won't be playing against us in December either.
Article 21 of the Eufa rules say
21.02 In case of repeated cautions, a player is suspended for the next competition
match:
b) from the first match in the group stage, after three cautions in three
different matches, as well as following any subsequent odd-numbered
caution (fifth, seventh, ninth, etc.).
So it looks like only Zuniga will miss the game.