If Bosnia and Herzegovina are to get anything from their clash against Argentina, then their defence needs to be alert all the time.
Argentina attack v Bosnia defence
Truthfully, this is where the match will be won, lost or end in a stalemate. It is hard to argue against Argentina having the most feared attack in the entire tournament apart from Germany, and it will be up to the Bosnian defence to do their best if they have any chance of coming away with something.
Javier Mascherano v Miralem Pjanic
He is not as feared as years past, but Mascherano is still quite difficult to match up against. His sole purpose on Sunday will be to keep Pjanic in his back pocket. If he does that, then the supply lines to Edin Dzeko and others will be in considerable danger.
Martin Demichelis v Edin Dzeko
Despite an unconvincing season with Manchester City – although it did improve – Demichelis’s knowledge of his club-mate could be crucial given Argentina’s weakness at defending crosses. If Dzeko and strike partner Vedad Ibisevic can be starved of aerial balls to attack, then Argentina should have too much for Bosnia’s equally shaky rearguard.