Slovakia v England is also under way. There is live radio and text commentary of that game here.

We will let you know when any goals in that game go in - and how it might affect this group.

Russia get us under way.

Image source, EPA

Jack Williams: Come on Wales - let's take these three points.

Peter: Wales have got a good referee in Jonas Eriksson.

Camera: C'mon Wales and England to go through as top two.

Image source, Getty Images

Wales' players and fans belt out their national anthem. So do the Russians. Almost time to go.

As we get ready to go, here is a reminder of the permutations.

The headline is Wales will go through with a victory. A draw might be enough, it might not.

They can finish in any of the four positions in the group.

John Hartson
Ex-Wales striker on BBC Radio 5 live sports extra

My heart tells me we will win and win well.

We can't underestimate the Russians. 

We started tournament well with a fantastic win, let's not throw all that good work away.

Image source, Getty Images

The players are in the tunnel now waiting to come out. The biggest day of some of the Welsh lads' careers.

John Hartson
Ex-Wales striker on BBC Radio 5 live sports extra

The talking is done now.

You go onto that pitch and take responsibility for own performance. You are given honour to represent your country and you are the best player in country to do this job. 

Go and do the job required and get us into the last 16.

Sizing-up the opposition as Wales take on Russia in Toulouse

Dafydd Pritchard
BBC Sport Wales in Toulouse

Sam Vokes’ last goal for Wales came in a 3-1 friendly win against Iceland in 2014.

His record of six goals in 40 international appearances may not be the most impressive, but that strike did coincide with a brilliant solo effort from Gareth Bale.

The Real Madrid forward received the ball in his own half, powered past several Icelandic defenders and fired into the bottom corner.

More of the same tonight? Wales fans will certainly hope so.

Kevin Ratcliffe
Former Wales captain on BBC Radio 5 live sports extra

For me it is so important that Wales' wing-backs push on to be midfield players. If they don't then we could get overrun in midfield. 

It is going to be Ramsey and Bale off Vokes and I just hope Bale starts a little bit wider.

Russia have won each of the last three meetings with Wales, outscoring them 6-2 in that run.

Joe Ledley and James Collins scored those two goals for Wales, as John Toshack’s side lost 2-1 and 3-1 in their World Cup 2010 qualifying matches against Guus Hiddink’s Russia.

In their last four games against Wales, Russia have successively scored no goals, one goal, two goals and finally three goals. So will they score four tonight?

Image source, Getty Images

The Welsh town of Bala has also changed its name to Bale temporarily. Read about that here.

Russia have qualified for the knockout stages of the Euros only once in their four participations since the breakup of the USSR. It was in 2008.

Wales have reached the knockout stages in their only previous major tournament participation, back in the 1958 World Cup. They were knocked out in the quarter-finals by eventual winners Brazil.

Image source, Getty Images

Security has been beefed up in both Saint-Etienne, where England are playing Slovakia, and Toulouse following numerous incidents during Euro 2016.

Bars have also been ordered to close early.

Twenty Russian fans who were deported from France on Saturday were not able to return for this game.

Wales boss Chris Coleman has also called on supporters of both teams to make the match one to remember and not for the "mindless minority" to steal the headlines.

Image source, PA