All eyes will on Wales v England tonight as both teams hold out hope of qualifying for the next round of the World Cup.
Rob Page and Gareth Southgate's sides can both go through this evening - although it is far more straightforward for the English than it is for the Welsh. You can read more about that here.
The other game in group - Iran v USA - is integral to Wales' hopes of progression. We'll keep you updated with events in that game in our live blog, which you can find here.
Both matches kick off at the same time - 7pm UK time - so that no team has an unfair advantage.
If the kick-off times were staggered, teams playing later would know exactly what they need to progress to the knockouts.
Therefore both games start simultaneously.
READ MORE:
What results Wales need tonight to qualify for next round of World Cup