Group C is been dominated by Real Madrid having won all their three games, they are definitely sure to qualify for the next round of the UCL, it's really sad how union Berlin is performing so poorly at the champions league, so far they are yet to win or draw a single game in the UCL.
They are the only team in the group C of the UCL who is yet to get a single point, Napoli just as expected is doing well and have won two out of the three games they have played so far and I think they are sure going to qualify because meeting union Berlin I their next match at home will definitely be a tough one as they wouldn't want to be humiliated by Berlin at home so it's most likely a win with a small goal margin as Berlin would want to make sure they get a draw or possibly win in that match.