The host country Russia welcome the Iranian national team as the first country to arrive ahead of next week tournament commencing on June 14.
The 32 teams summited 23 man list to FIFA and Data via cies football observatory collected age statistics of qualified teams.
The Super Eagles of Nigeria ranked the youngest squad with an average age of 24.9, followed by Germany 25.7 and England 25.9. South American rep Costa Rica ranked third oldest squad with an average age of 29.0, same with debutant Iceland. Panama ranked bottom with 29.4.