PHOTO: AFP
Even though he is third on Argentina's list of all-time top scorers and has a prolific record with Manchester City, Aguero has started only 14 games in major tournaments since making his World Cup debut in 2010.
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But with Gonzalo Higuain retired, he is set to play a central role in Brazil.
Aguero played his part in memorable triumphs for his country at youth level, twice winning the under-20 World Cup as well as claiming an Olympic gold medal alongside Messi at the 2008 Beijing Games.
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But he is desperate to win a major international trophy, above all for Messi, who has lost four finals with the national team, missing out on the last two Copa America finals with painful penalty shootout defeats to Chile.
"I'm more excited about winning for Leo than for myself because he has played for so long and he has suffered so much," Aguero told Fox Sports. "Whenever I talk with Leo, we always say 'Pray that one day it happens for us'. It's what he wants and it's what we all want. I put myself in his shoes and I want to do the best."
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