On Tuesday, the World Cup's final round of group matches will begin.
A number of significant teams are still unsure of their status for the round of 16.
The requirements for each team this week to advance out of their World Cup group are listed below:
Netherlands need a win or draw against Qatar, who are already eliminated, to qualify.
Netherlands will also still qualify even if they lose to Qatar, providing Ecuador beat Senegal.
Ecuador need to win or draw against Senegal but they could qualify on goal difference if they lose and Qatar beat Netherlands.
Senegal will qualify if they beat Ecuador. They could also qualify on goal difference if they draw against Ecuador and Qatar beats the Netherlands.
England will qualify with a win or draw. Depending on goal difference, the Three Lions could also make it through in defeat.
Wales must win, or they will be eliminated. USA are in the same position – win or they are out.
Iran will reach the last 16 if they beat the USA. They will also qualify if they draw, unless Wales beat England.
All four teams are still in with a chance of reaching the knockout stage.
A win over Poland would secure Argentina’s place in the last 16, but a draw would be enough if Mexico and Saudi Arabia also draw.
However, Argentina would be knocked out if they draw and Saudi Arabia beats Mexico.
A win or draw will be enough for Poland to qualify. If they lose to Argentina, they could be eliminated on goal difference if Saudi Arabia draws with Mexico.
Mexico, meanwhile, needs a win to have any chance of reaching the last 16.
France have already qualified ahead of their final game against and are almost certain to finish top of Group D.
A win for Australia against Denmark would see them qualify, while a draw would also be enough to help France avoid defeat against Tunisia.
Denmark must win against Australia to have any chance of reaching the last 16.
Tunisia is also in the same position; they must also win against France to have a shot at making the knockout stage.
Spain will qualify if they beat or draw with Japan.
Germany must beat Costa Rica to have any chance of reaching the last 16. If they win and Japan draws with Spain, it will come down to goal difference.
Japan will qualify if they beat Spain, but they will be eliminated if they lose and there is a winner between Germany and Costa Rica.
Belgium is staring down the barrel of an early exit, and they must beat Croatia in their final group game to have any hope of reaching the last 16.
A win or a draw for Morocco against Canada, who are already eliminated, would see them reach the knockout phase.
Croatia will qualify with a win or a draw against Belgium.
Brazil have already qualified and are almost certain to finish top of Group G ahead of their final game against Cameroon.
Switzerland will qualify if they beat Serbia, while a draw would also be enough, provided Cameroon fail to beat Brazil.
Cameroon and Serbia both need to win their final group games to have a chance of making the last 16. If both win, it will come down to goal difference to determine who goes through.
Portugal have already qualified, and a win or draw against South Korea will secure their place as group winners.
Ghana will reach the last 16 if they beat Uruguay. A draw would mean a goal difference would be required if South Korea beat Portugal.
Uruguay and South Korea will be eliminated if they lose or draw.