Nigeria, who have three points after playing two group-stage matches, are second in Group D, while two-time champions Argentina are bottom of the table and need to win their final group-stage match to keep alive their hopes of reaching the knockout stage.

"Nigeria played in two different styles. In the first half [in the match against Iceland] their play was quite boring but after the break they changed their strategy, started dominating on the pitch and won the match. Such opponents are hard to predict. However, I'm sure that tomorrow will be one of the five matches that will lead us to victory," Sampaoli told journalists.