Argentina enters the 2026 World Cup as defending champions with an experienced squad featuring Lionel Messi and depth across attack and defense, positioning them as the clear frontrunner to top Group J despite ongoing fitness questions around key players and a delayed squad announcement. Austria returns to the tournament after 28 years on the back of strong UEFA qualifying form under a demanding coach, giving them a realistic chance at second place ahead of the group stage opener. Algeria makes its first appearance since 2014 with an attacking-oriented side capable of challenging for advancement, while Jordan debuts at the finals following a historic qualifying run but faces the steepest path against more established opponents. The group schedule begins June 16, with all teams preparing through final warm-ups in the lead-up to the expanded 48-team event.