The Los Blancos wide-man is part of Alejandro Sabella's 23-man squad for the tournament in South America alongside his La Liga rival and four-time Ballon d'Or winner Messi.
Despite their allegiances in Spain's top division, Di Maria has admitted that Messi carries the weight of the nation largely on his shoulders, and the former Benfica star has claimed that the team are looking towards the 26-year-old for inspiration.
In an interview with Ole back in his homeland, Di Maria said: “He has four Ballon d’Ors and he’s the boss. We follow him and go with him and I try to do my best for the team so everything goes as smoothly as possible. He’s our captain and he carries the baton.
“I don’t know what’s required to be the champions. Argentina are one of the candidates by name but there are a lot of strong teams in good form. I believe we have a very good team to fight for the title.
"The group is very well and we’ll try to do our best to get to the final so we can once and for all be world champions. It’s always a failure if we don’t win the World Cup. It will be a failure or a new story."
Despite some suggesting that Messi had endured a somewhat subdued campaign, the Barca forward still managed to plunder 41 goals for his club side, but it was Di Maria who crowned his season off with a Man of the Match display as Real Madrid won the Champions League last week.
The victory, which ended Real Madrid's pursuit of La Decima - their 10th European title - capped off a superb year for Di Maria. Los Blancos also lifted the Copa del Rey last month, and the 26-year-old impressed throughout the season and even adapted to an unfamiliar central role at various stages for Carlo Ancelotti's side.
Argentina begin their World Cup campaign with a meeting with Bosnia on June 15, and they square off against Iran six days later, before finishing off with a game against Nigeria.