Amid rumours of divisions between players and the management, Argentina take on Nigeria in a do-or-die group D match, at St Petersburg. They go into the game bottom of the standings and knowing they have to win to have any hope of advancing to the knockout rounds. Even victory could see them exit the tournament if Iceland beat Croatia by enough goals.
The South Americans drew with Iceland and were comprehensively beaten by Croatia to leave themselves teetering on the brink.
Nigeria, second in the group, will advance if they beat Argentina, while a draw may also prove to be enough even if third-placed Iceland beat Croatia.