Fanatics Fest gave Lionel Messi his last public appearance before Sunday’s World Cup final, where he said Argentina "will give it our all" against Spain in East Rutherford.
1.5 billion viewers are expected to watch as FIFA used the New York event for a public preview, replacing a standard news conference with questions from Tom Brady, Novak Djokovic and Kevin Durant.
Argentina enters the final at 7-0-0 after repeated comeback tests, including rallies against England and Egypt and extra-time wins over Cape Verde and Switzerland.
Back-to-back titles are now within reach for the defending champions; no nation has repeated as World Cup winner since Brazil in 1958 and 1962.