Cristian Romero has sounded the alarm over Argentina's defensive vulnerabilities as the South American champions prepare to face Switzerland in a World Cup quarterfinal at Arrowhead Stadium on Saturday.

The centre-back was candid in his assessment, acknowledging that the number of goals Argentina have conceded during the tournament is a source of concern within the squad. "It bothers us," Romero said of the defensive lapses, signalling that the group are fully aware of the problems that must be resolved before a deep run becomes possible.

Argentina will need a far tighter defensive display against Switzerland if they are to progress to the semifinals and continue their bid to retain the world title.