Sergio Aguero has revealed that he still laughs with Barcelona star Lionel Messi after not recognising him at the 2005 Under-20 World Cup in Netherlands.
The Argentina team-mates were ultimately victorious at the tournament, beating Nigeria 2-1 in the final.
"We were talking about shoes, and then he said something," the Premier League striker told DirectTV Sports.
"He said his name was Lionel, and I asked, what about the surname?
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Aguero went on to admit that the story later became the source of many jokes amongst the pair's peers.
"Messi cried with laughter and still cries with laughter when he recalls it," said the 24-year-old, who shared a room with the future World Player of the Year at the tournament.
"I was 17. Then it was cool between us," he added.