The first week of the FIFA World Cup group stage featured major upsets and record-breaking tournament scale across the U.S., Canada, and Mexico.

These early results signal a shift in global competitiveness, as smaller nations challenge established powerhouses in the largest edition of the tournament to date.

Jakub Janas highlighted the five biggest stories of the opening period, focusing on a historic result involving Spain. Cape Verde secured a goalless draw against Spain on Monday, a result described as one of the biggest shock results at a FIFA World Cup, said a Yahoo Sports author.

This edition of the tournament is the largest in history. The expanded field consists of 48 teams [1], with matches staged across three host countries [2] and 16 stadiums [3]. The 39-day tournament [4] will feature a record 104 matches [3].

Individual performances also defined the first seven days. Lionel Messi, along with players such as Balogun and Vozinha, delivered standout displays. "From ageless wonders to breakout stars, the first week of the World Cup provided some outstanding performances," said a Fox Sports author.

While the group stage has seen historic draws, the tournament's history also includes extreme disparities in skill. The largest defeat margin recorded in World Cup history is nine goals [5].

The current scale of the event reflects an effort to globalize the sport. By increasing the number of participating nations and extending the duration of the event, FIFA has broadened the reach of the competition, though this also increases the likelihood of unpredictable results like the draw between Cape Verde and Spain.

Cape Verde's heroic goalless draw will nonetheless go down as one of the biggest ever shock results.

The transition to a 48-team format increases the volatility of the group stages by introducing more diverse footballing styles and providing more opportunities for underdog nations to secure historic results against elite teams.