When Lionel Messi was lured to Major League Soccer, it was hoped the Argentine GOAT might take the sport to new heights in the United States. As the ageing superstar gets deeper into his second season in the USA we ask what kind of impact he's having on and off-field. In a market that's appreciating him as an entertainer as much as an athlete, he's delivering an idol experience for round ball fans. Featured: Jason Gay, sportswriter, Wall Street Journal. 

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