Seven of his Barca colleagues lifted the prestigious trophy with La Roja four years ago in South Africa, and the Argentine has revealed how he wishes he was in their position.
Messi will be heading to his third World Cup this summer, and Argentina are second-favourites behind host nation Brazil to lift the trophy, ahead of Spain.
The 26-year-old has only scored once at a World Cup with the final goal in a 6-0 win against Serbia and Montenegro in 2006, and he failed to score in South Africa last time out.
He will be hoping to change that with a solid display in Brazil, and will look to add the World Cup to his already mesmerizing list of achievements.
"The only important thing for me is to play football, I have always done that since I was a boy, and I will continue to do that now.
“I've always said that I when I stopped enjoying this sport I would stop playing. I play because I enjoy it," Messi said during an interview with ESPN.
The four-time Ballon d'Or winner has not progressed past the quarter-final stage in his two previous attempts with Argentina, and believes that some of his Barcelona teammates with prove to be his toughest opponents.
“My strongest opponent? There’s Neymar, Iniesta, Xavi, Cristiano, Robben and Ribery, I don't want to single out anyone.
“I want to win the World Cup, but not just so that I can change people’s opinion of me. I want to add the World Cup to the list of trophies I have won," he added.
“I envy my Spanish friends, I wish I were in their place having already won the tournament.”