Obviously we know the connotations from Group D - A Welsh win and Serbian slip up and party time!

In terms of how tonight's results affect things...

Group I - Finland's last gasp equaliser in Croatia surely means Iceland will win the group. They won comfortably in Turkey and face the bottom side, Kosovo, at home. Croatia now travel to Ukraine where a point means they finish second. Ukraine need to win to get a playoff place. It means that 2nd place can only now have a maximum of 20 points - a draw between Croatia and Ukraine would still place Croatia above Wales on goal difference if Wales only drew.

At present there are 3 other groups where the runner up can only get a maximum of 20 points:

Group F - A Scotland win in Slovenia would give the runner-up 20 points, otherwise Slovakia virtually certain to have 18 points and finish 2nd.

Group H - Only Bosnia can get 20 points, but they host Belgium. Greece possibly can finish on 19 points if they win in Cyprus, otherwise runner-up may only have 17 points.

Group I - As mentioned. Winner of Croatia - Ukraine gets 20 points, 18 points apiece if they draw but Croatia above Wales if Wales have 18 points.

Basically, if Wales beat Ireland they will definitely be one of the top 8 runners-up unless Scotland thrash Slovenia by 3 more goals than we beat Ireland by, Bosnia beat Belgium and Croatia win or Ukraine win by a hatful, or Northern Ireland lose in Oslo. There might be permutations in group A, but I reckon they are very unlikely.

Would 1 point against Ireland be enough to guarantee a playoff spot? If Greece and Bosnia fail to win tomorrow, then yes. If not, then no.