Sweden could have had this group all wrapped up by now if it wasn't for Germany's dramatic comeback on Saturday night.

They were organised in defence, hard-working and also looked good going forward, capped by Ola Toivonen's excellent goal.

They were also solid in their opening win over South Korea, although they did need a penalty to take the win...

And there is good reason that Mexico are unchanged.

They have without doubt been one of the teams of the tournament so far.

They began with their shock win over Germany with Hirving Lozano's goal and then comfortably saw off the challenge of South Korea.

That white away kit is beautiful too.

Patrick Jennings
BBC Sport in Ekaterinburg

It is the first time in Juan Carlos Osorio’s 50 matches in charge of the Mexico team that he has made no changes to his starting XI.

Most of the Mexican journalists here just can't believe it. Osorio has often been criticised for too much tinkering.

One guy had to come over and double, triple check with those around me. It's true, and the feeling here is it's a very good thing.

Both teams are unchanged from their previous games for this one.

We'll have full team news in a mo.

But that's enough of all that permutations chat - now for something a little lighter.

Former Sweden and Southampton midfielder Anders Svensson says he will give up his favourite food - tacos - if Mexico knock his country out of the World Cup.

This may not seem like a big deal - but the guy's nickname is 'Taco' because of his love for the Mexican dish.

Read more about that story here.

Image source, Getty Images

Image source, Getty Images

I'd guess some of you are reading this page because you're interested in Germany going out.

The clearest scenario of that happening is if they fail to win and Sweden win.

My colleague Emlyn Begley will be taking you through the Germany v South Korea game here.

This morning he informed me he almost did accountancy as a degree but don't let his superior maths skills cloud you judgement in which live-text to follow.

Matthew Middlehurst: Can you do everybody a favour Mexico and just let Sweden beat you today please. Think about you you will be doing everyone else a favour by knocking out Germany.

Mexico qualify for the last 16 if they get a point against Sweden today.

Sweden are through if they win OR better Germany's result.

Germany must win by two or more goals to guarantee qualifying OR better Sweden's result.

South Korea must beat Germany and hope Sweden lose to Mexico to have a chance of qualifying.

There are also a whole load more scenarios which include fair play and head-to-head mini leagues but let's cross that bridge if we get to it.

Right here we are focussing on Mexico v Sweden in Group F - possibly the most dramatic group so far.

It is the only group where all four teams can still qualify going into the final round of fixtures.

I'm now going to try and explain to you the scenarios where that can happen. My head hurts so yours doesn't have to.

Hello! This World Cup has been brilliant. There have been goals, dramatic late victories, VAR controversies and much, much more.

10 teams are already through to the knockout stages and six places remain.

But today this fantastic World Cup may well see the end of me due to that dreaded word - permutations.

A few years ago I merrily skipped out of an AS maths exam thinking the pain of mental arithmetic was done.

How wrong I was...