11.   If Wolves and West Brom tie on points, Wolves will go through on superior goal difference.

12.   Ireland defied expectations in its qualifying group by knocking out the Netherlands and finishing level with Portugal, which won the group because of a superior goal difference.

13.   Israel has a superior goal difference and a victory would give it second place and a playoff spot.

14.   Nigeria also finished with four points but took second place and the guaranteed berth in the second round on a superior goal difference.

15.   Pakistan ended level with Australia at eight points after its five preliminary games but grabbed the top spot by virtue of its superior goal difference.

16.   Portugal has a vastly superior goal difference to Ireland and would get the automatic spot by beating Estonia at home.

17.   Portugal, with a vastly superior goal difference, would get the automatic spot by beating Estonia at home.

18.   The Rotterdam club has one match in hand to Twente and a superior goal difference.

19.   The Rotterdam club has played one match fewer than Twente and has a superior goal difference.

20.   The Yugoslavs were hoping for a big victory to overcome a superior goal difference to the Germans, who were playing Iran in Montpellier.