Federico Fernandez has insisted that Argentina are aware Bosnia and Herzegovina can spring a surprise when the two sides meet in Group F on Sunday night.
The defender believes that the warning signs were there to see when Argentina beat the same opponents 2-0 in a friendly last November, and he claims that the key to success will be keeping possession for long periods.
"We know Bosnia will be a tough opponent for us. They have the potential to win matches," Fernandez told reporters. "We have worked a lot on trying to keep the ball.
"We played them in a friendly last year and they can surprise you."
Argentina will also meet Iran and Nigeria in Group F.
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