Yeah that only problem is that I can see those two teams on 3 points going into that and playing out a gentleman's draw to ensure both go through. I don't think they'll throw the game, but the intensity won't quite be there if Ukraine beat Northern Ireland next week.
Technically, wouldn't the second place finish be advantageous over third? And, if so, wouldn't the teams want to do their best to finish second?
Runner up of group C will face a runner-up of group A, while 3rd placed teams always face a group winner.