Group B is set up for a dramatic finale, with all four teams still vying for a spot in the last-16 of World Cup 2022.
The first two matchdays have left things delicately poised, with three points separating group leaders England with bottom side Wales - the two face each off against each other, though, and the Welsh would love nothing more than to stick one over on their neighbours.
Meanwhile, USA and Iran are set up for an intense encounter, and, with plenty of permutations to figure out within Group B, anything can still happen. Indeed, top-two sides England and Iran could be packing their bags early come the end of the night, but only time will tell.
Expect fireworks, chaos and a little bit of blood and thunder.
Group B fixtures
- 7pm GMT: Wales v England
- 7pm GMT: Iran v USA
Who needs what to reach the last 16?
1. England (4pts, GD+4)
Barring a disastrous 4-0 loss to Wales, England are through to the last-16 of the World Cup, thanks to a huge 6-2 win against Iran in their opening game and an important point against USA.
A win would ensure they top the group, while a draw and a loss could still see them finish first - it just depends on if there is a winner in the other game and the scoreline against Wales.
2. Iran (3pts, GD-2)
In order to qualify without worry, Iran will have to beat USA. A draw might be enough, but that will rely on Wales failing to beat England - something teams aren't too fond of doing.
A loss against USA indefinitely spells the end of their tournament.
3. USA (2pts, GD 0)
It's win or bust for USA against Iran. Draw or lose and they're out, making the fixture with the Asian side a winner-takes-all affair.
USA still have the ability to top the group, too, should England lose to Wales in the other game.
4. Wales (1pt, GD-2)
The task is simple for Wales: score four goals against England and progress to the knockouts. Easy enough, right?
Well, that's one way for Wales to guarantee their spot in the last-16, but a win under 4-0 could still be enough - all that relies on is Iran drawing with USA.
