The teams are out in Zurich.

It's time for the anthems.

Katie Sherwood
Former Wales midfielder on BBC Two Wales

I'm excited and I'm nervous.

This is a huge game this could be game-changing for Wales and it's a moment we need to embrace, we're on the brink of greatness.

This is the dream and ambition the team have been chasing for the last 10 years.

Gareth Bailey
BBC Sport Wales at the Stadion Letzigrund

Tonight's host city, Zurich, is home to the Fifa museum.

The Women's World Cup trophy is currently on tour, however, a cap of Wales international Billy Meredith from 1895 has pride of place at the venue.

Image source, BBC Sport

Image source, BBC Sport

Image source, BBC Sport

Gareth Bailey
BBC Sport Wales at the Stadion Letzigrund

The PA announcer in the stadium is reading out the home side's team - first names only as the crowd bellow back the surnames.

A fun touch and the crowd are in good spirits - they are up for this one tonight.

Gemma Grainger doesn’t mind if Wales qualify for the World Cup via a play-off in New Zealand in February, in fact, she says you can sign her up for that now.

"If we need to go and play another game in New Zealand, I would take that right now," she told BBC Sport Wales.

"When we started the campaign we wanted to be in this position.

"The team have created history, but it is the next step. It's game number 12 [in this qualifying campaign].

"We don't know if game number 12 will be our last game but what we are looking forward to is making sure we deliver in this game and that's what our focus has to be on.

"We have a mentality and belief that we will compete with anybody and we want to make sure we do that tonight.”

Switzerland, who are nine places above Wales in the Fifa rankings in 21st, welcome Grainger’s side to the 26,000-capacity Stadion Letzigrun.

It is fair to say Grainger isn’t worrying about trying to qualify outright by securing a two-goal victory.

"We are targeting a win," she said.

"We are always going to set out to win, by however many goals is not really in our mind. It's the same game-plan, it's the same competitive edge, it's the same mindset.

"[I would be] happy with a 1-0 win - final answer."

Image source, FAW

Wales fans have been reacting after the women's side secured their place in the World Cup play-off final..

Fans at the game, where Wales' women saw a record crowd of over 15,000, said it was an "amazing result".

Captain Sophie Ingle says it would mean everything for Wales to qualify for the World Cup and jokes that she would retire having achieved the feat.

Wales have never qualified for a major tournament and face Switzerland in the play-offs.

Ingle, however, admits there is a level of frustration at how tough it is for European sides to qualify for the World Cup, with Wales potentially not through even if they win tonight.

Wales' match-winner Jess Fishlock says her goal against Bosnia-Herzegovina was the best and most important of her international career.

Fishlock's extra-time volley sent Wales into tonight's World Cup play-off final.

Despite winning nine domestic titles and two Champions Leagues, Fishlock is as determined as ever to reach a first major finals with Wales.

"I think that was my best and most important Wales goal, probably both," she told BBC Sport Wales.

"It is one of those moments you kind of dream of and the celebration was epic.

I didn't even know what to do and I ended up sliding, which is not me. "It was pure emotion we have for each other and pure relief; don't think I've felt something like that before to be honest."

Read more: Fishlock hails best and most important goal

Image source, FAW

The success of the Wales women's football team has young girls across the country wanting to take up the beautiful game.

BBC Wales news has had a closer look at the impact.

Read more: Wales inspires younger generation

Image source, BBC Sport

Speaking of tonight's venue.

Pretty, pretty, pretty good.

Was it the venue for Armin Hary becoming the first person to run the 100m in 10 seconds, back on 21 June, 1960?

It was!

Thanks to the FAW for that very specific, venue-related fact.

Gareth Bailey
BBC Sport Wales at the Stadion Letzigrund

Who needs vuvuzelas when you have cowbells?!

The Switzerland fans are making their way into the stadium and they're armed with instruments.

You can be sure the Welsh fans will be singing their hearts out underneath the bucket hats this evening.

Liverpool duo Rhiannon Roberts and Ceri Holland look ahead to their Women's World Cup play-offs as Wales stand on the cusp of history.

We could all watch this on a loop, I bet.

Watch Jess Fishlock's 'outrageous' winner for Wales against Bosnia-Herzegovina.

Then watch it again, probably.

You just want to watch Jess' goal, don't you?

In case you missed it, Wales head to Switzerland after an extra time victory over Bosnia-Herzegovina at the Cardiff City Stadium in front of a record crowd.

If you'd like to reminisce about that fine win, you can read my match report below and enjoy it all over again.

Read more: Fishlock goal sends Wales to World Cup play-off final

Image source, FAW

Right now we know the teams, let's explain Wales' possible qualification route.

Please bear with me.

The complicated nature of the qualification process for the 2023 World Cup - which will be hosted by Australia and New Zealand - means a Welsh victory tonight by one goal would send Gemma Grainger's team into an inter-confederation play-off, which will take place in New Zealand in February 2023.

However, should Wales win by two or more goals, they could qualify for the World Cup based on ranking points if results in the other play-off finals go their way.

To avoid the inter-continental play-off route, Wales would need either Scotland or Portugal to win their respective games via a penalty shootout.

Portugal host Iceland in a tie which kicks off at the same time as Wales' match in Switzerland, while Scotland are at home to the Republic of Ireland later tonight.

If Wales do end up facing a further play-off game next year, they would start as favourites against lower-ranked opponent.

Still confused? Hopefully not, but this video should help.

My colleague Catrin Heledd has you covered.

Gareth Vincent
BBC Sport Wales at Stadion Letzigrund

There are no surprises in the Wales line-up tonight as Gemma Grainger keeps faith with the side which started last Thursday's play-off semi-final win over Bosnia-Herzegovina.

That means Jess Fishlock is again set to start in midfield, with Ceri Holland and Carrie Jones pushing on in support of Kayleigh Green.

Natasha Harding is the one notable absentee having been left out of the squad for personal reasons.

Wales: O'Sullivan, Roberts, Ladd, Evans, Rowe, Ingle (c), James, Fishlock, Holland, Jones, K Green.

Subs: Clark, Middleton-Patel, Woodham, J Green, Ward, Bull, Hughes, Estcourt, Walters, Wynne, Filbey, Morgan.

Image source, BBC Sport