The World Cup round-of-16 will be wrapped up this evening with the final four contenders fighting for the two quarter-final places left today.
Many of the previous knockout ties have seen the predicted tournament favourites flex their muscles over many of the group stage's surprise packages, and this afternoon's meeting between Morocco and Spain presents a potentially similar pattern.
Spain's failure to top Group E has handed them an apparently simpler route to the latter stages, avoiding Brazil in the quarter-finals, but a meeting with Group F table-toppers Morocco is no easy task for Luis Enrique's side.