The 2026 FIFA World Cup is a major soccer tournament held from June 11 to July 19, 2026, with games at multiple stadiums across North America.

This market will resolve to "Yes" if Lionel Messi takes the field as a player in at least one official match for Argentina during the 2026 FIFA World Cup at the group stage or later. Otherwise, this market will resolve to "No".

Any on-field appearance as a player will qualify, in regulation, stoppage time, extra time, for a shootout, etc.

The primary resolution source for this market will be information from FIFA (https://www.fifa.com/), however a consensus of credible reporting will also be used.