Manchester United's Sergio Romero has been ruled out of the World Cup after the Argentina goalkeeper suffered a knee injury.
Argentina's official Twitter feed announced the news late on Tuesday - a day after the country's 23-man squad was announced.
A statement on the Argentinian Football Association's website read: "Argentina goalkeeper Sergio Romero will be removed from the list of 23 players who will participate in the 2018 World Cup in Russia.
"The player of Manchester United today suffered a joint blockage in his right knee which requires surgery.
Sky Bet: Argentina 9/1 to win 2018 World Cup
"In the next few days, we will announce the replacement."
Chelsea's Willy Caballero and Franco Armani were the other goalkeepers named in Jorge Sampaoli's squad.
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