Goes without saying, but when you opt to go with just two central midfielders, you are not going to dominate possession.
Post update
Wales 0-0 Poland
Poland starting to dominate.
A good spell for them.
CLOSE!
Wales 0-0 Poland
First chance for Poland as Robert Lewandowski heads at goal from a free-kick, but Wayne Hennessey saves.
ReutersCopyright: Reuters
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
Poland don't quite have that counter-attacking threat - their build-up is slow and that probably frustrates Robert Lewandowski a bit.
Wales' back three has looked slightly off it once or twice, though.
Post update
Wales 0-0 Poland
Robert Lewandowski is the third Polish player to go down holding their face when there is nothing in it.
Throwing themselves about like Cirque du Soleil.
Post update
Wales 0-0 Poland
Wales work a short corner, but it ends in the arms of Wojciech Szczesny.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
There has been no goalmouth action but it has been a pretty end-to-end game.
Wales can play into central midfield or to Gareth Bale, but I think it's the width where they can find the most joy.
Post update
Wales 0-0 Poland
Wales are almost caught out by an unlucky bounce, but Neco Williams gets back to stop a potential shot on goal.
Post update
Wales 0-0 Poland
Lovely defending by Ben Cabango who gets his body in the away of Robert Lewandowski and then draws a foul.
Goes without saying, the Barca man provides the sternest of tests.
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
Brennan Johnson in that area that he loves - he just peels out to the right-hand side.
I think he can have a lot of joy doing that tonight.
Let's get the ball to him as much as possible.
Post update
Wales 0-0 Poland
You're just a bit Kieffer Moore, I thought they were chanting.
Like you might tell Daniel Craig he's just a bit Roger Moore.
Post update
Wales 0-0 Poland
Dafydd Pritchard
BBC Sport Wales at Cardiff City Stadium
Wales fans chanting at Robert Lewandowski that he's an inferior Kieffer Moore (worded a little differently).
When they did the same to Kevin De Bruyne here last November (Aaron Ramsey in that case), he scored. Hopefully Lewandowski doesn't take it so personally.
Post update
Wales 0-0 Poland
Dan James puts the corner straight out of play.
What was I saying about a lack of composure so far?
Post update
Wales 0-0 Poland
Brennan Johnson wins the first corner of the game.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
It's the first time we have seen Dylan Levitt and Joe Morrell centrally, on their own.
That's going to be important tonight.
Post update
Wales 0-0 Poland
Nice passing by Wales, but the final ball is just too strong for even Dan James to reach.
Post update
Wales 0-0 Poland
I mean you must be able to trust the analysis I'm providing now, right?
That's uncanny.
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
It's been a helter-skelter start from both teams.
I don't think either team is showing that much calmness.
Post update
Wales 0-0 Poland
This game is being played at quite a pace, but both sides are lacking in composure at the moment.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
The three centre-halves need to tighten up, liven up.
That's twice they have looked nervy - [asking] who is going for what?
Joe Rodon needs to take charge of those situations.
Live Reporting
Michael Pearlman
All times stated are UK
Post update
Wales 0-0 Poland
Goes without saying, but when you opt to go with just two central midfielders, you are not going to dominate possession.
Post update
Wales 0-0 Poland
Poland starting to dominate.
A good spell for them.
CLOSE!
Wales 0-0 Poland
First chance for Poland as Robert Lewandowski heads at goal from a free-kick, but Wayne Hennessey saves.
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
Poland don't quite have that counter-attacking threat - their build-up is slow and that probably frustrates Robert Lewandowski a bit.
Wales' back three has looked slightly off it once or twice, though.
Post update
Wales 0-0 Poland
Robert Lewandowski is the third Polish player to go down holding their face when there is nothing in it.
Throwing themselves about like Cirque du Soleil.
Post update
Wales 0-0 Poland
Wales work a short corner, but it ends in the arms of Wojciech Szczesny.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
There has been no goalmouth action but it has been a pretty end-to-end game.
Wales can play into central midfield or to Gareth Bale, but I think it's the width where they can find the most joy.
Post update
Wales 0-0 Poland
Wales are almost caught out by an unlucky bounce, but Neco Williams gets back to stop a potential shot on goal.
Post update
Wales 0-0 Poland
Lovely defending by Ben Cabango who gets his body in the away of Robert Lewandowski and then draws a foul.
Goes without saying, the Barca man provides the sternest of tests.
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
Brennan Johnson in that area that he loves - he just peels out to the right-hand side.
I think he can have a lot of joy doing that tonight.
Let's get the ball to him as much as possible.
Post update
Wales 0-0 Poland
You're just a bit Kieffer Moore, I thought they were chanting.
Like you might tell Daniel Craig he's just a bit Roger Moore.
Post update
Wales 0-0 Poland
Dafydd Pritchard
BBC Sport Wales at Cardiff City Stadium
Wales fans chanting at Robert Lewandowski that he's an inferior Kieffer Moore (worded a little differently).
When they did the same to Kevin De Bruyne here last November (Aaron Ramsey in that case), he scored. Hopefully Lewandowski doesn't take it so personally.
Post update
Wales 0-0 Poland
Dan James puts the corner straight out of play.
What was I saying about a lack of composure so far?
Post update
Wales 0-0 Poland
Brennan Johnson wins the first corner of the game.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
It's the first time we have seen Dylan Levitt and Joe Morrell centrally, on their own.
That's going to be important tonight.
Post update
Wales 0-0 Poland
Nice passing by Wales, but the final ball is just too strong for even Dan James to reach.
Post update
Wales 0-0 Poland
I mean you must be able to trust the analysis I'm providing now, right?
That's uncanny.
Post update
Wales 0-0 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
It's been a helter-skelter start from both teams.
I don't think either team is showing that much calmness.
Post update
Wales 0-0 Poland
This game is being played at quite a pace, but both sides are lacking in composure at the moment.
Post update
Wales 0-0 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
The three centre-halves need to tighten up, liven up.
That's twice they have looked nervy - [asking] who is going for what?
Joe Rodon needs to take charge of those situations.