Simon Church and Wales take on Russia this evening in a crunch Euro 2016 clash.
Should they win and England lose to Slovakia, Chris Coleman’s men will top the group and go on to place a third-placed side in the Last 16.
However, if the Three Lions win their final group fixture then Wales will finish second with a win and that would set them up a fixture with the runners-up of Group F, which looks likely to be either Hungary or Portugal.
A draw may also be enough for Church and Co to seal second place as long as Slovakia do not beat England.
However, if Slovakia were to win and Wales draw then Coleman’s side would finish third and have to wait on results in the other group games– although four points should be enough for them to progress.
If Wales were to lose this evening at Stadium Muncipal then they would miss out on second place and have to hope Slovakia lose to England in order to finish in third-place and give themselves a chance of earning a berth in the knockout stages.
Defeat and a Slovakia draw or win would see Wales exit the Championships.
Boss Coleman is expected to name the same starting XI which took on England last week, meaning Church will have to come off the bench if he is to feature. Same goes for Academy graduate George Williams and former loanee Jonny Williams, who are also expected to be amongst the substitutes.
Kick-off in Toulouse is at 8pm and there will be live coverage on ITV4.
Meanwhile, in the same group, Dons Academy graduate Dele Alli may be rested for England’s group finale against Slovakia.
The midfielder has played every minute of the tournament so far but with qualification all-but secured, Roy Hodgson is expected to make changes with the 20-year-old among those who could be replaced.
England will top Group B if they claim victory in St. Etienne while they will also qualify as group winners should they draw and Wales fail to beat Russia.
If the Three Lions were to lose this evening then Slovakia would climb above them but they would remain second if Russia and Wales were to draw. If Russia were to win, it would come down to goal difference and/or goals scored.
A Wales victory and defeat for Hodgson's men would see the latter slip to third place although their points total of four should be enough to see them through to the Last 16.
Coverage of England’s final group fixture is on ITV1 – kick-off is at 8pm.