4. Wales v Republic of Ireland, October 9
By the time Wales face Ireland on Monday, it is likely that they will be playing for second place in Uefa Group D. This would be a big match in regular circumstances, but the Cardiff fixture is simply huge with so much on the line.
There has been bad news for Wales on the injury front: they will be without star man Gareth Bale.
Even a draw may not be enough, as the second-placed side with the fewest points scored in the group will not go into the playoffs, which means that both nations may have to fight eyeballs out to get the win.
Perhaps more than any other game this week, this promises to be an incredible spectacle.
Edited by Shambhu Ajith