Three places remain unclaimed. One will come from Europe, where Ukraine’s playoff against Scotland was postponed by war. Those teams will meet in June, with the winner to face Wales for Europe’s final place.
The other two entries will come from two intercontinental playoffs that month: Costa Rica will face New Zealand, the Oceania survivor, in one game, and Peru, the fifth-place team from South America, will face an Asian team, either Australia or the United Arab Emirates.
Argentina, and Messi, qualified in November. But Portugal, and Ronaldo, needed to sweat out a European playoff after botching its guaranteed route to the finals in the group stage.
Article source: https://www.nytimes.com/article/world-cup-qatar-faq.html