No， Lionel Messi did not participate in the World Cup. Lionel Messi announced his retirement from international football in 2016 after losing in the Copa America Centenario Final against Chile. Since then， he has focused on his club football career with Barcelona.
Messi has had an extremely successful career in club football， winning 33 trophies with Barcelona， including ten La Liga titles， four UEFA Champions League titles， and six Copa del Rey titles. However， the one title that has eluded him is a World Cup title.
Messi was a part of the Argentina team that reached the 2014 World Cup Final， ultimately losing to Germany 1-0 in extra-time. He has come close to winning the World Cup on a few other occasions as well， with Argentina reaching the quarter-final in 2006 and the round of 16 in 2010 and 2018.
Unfortunately， Messi will not have the chance to make another World Cup run in the near future. He has made it clear that he will not be changing his mind on his retirement， and that he will be focusing on his club career instead.
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