So that's all from us and from Cardiff tonight, as we close the chapter on Group A4.
Wales only won a single point in the group and were relegated, but bigger picture, it should give them some good experience ahead of going to a first World Cup since 1958.
We've probably seen tonight just how key it is that Aaron Ramsey and Joe Allen return for Qatar, but Wales' spirits won't be diminished by tonight's result.
If you'd like some highlights, more analysis plus reaction from the Wales camp, tune in to BBC One Wales tonight from 22:30 BST or watch the show using this link
Thank you for following along with us, tonight and throughout this lengthy campaign.
See you on 21 November against the USA!
Nos da.
Getty ImagesCopyright: Getty Images
Post update
FT: Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
I am not worried. You wouldn't want it the other round, would you? You wouldn't want us winning 3-0 tonight and losing to Ukraine.
These fans, these players, they have been to two Euros and now they are going to the World Cup.
I don't think we are a top-tier team. I think we fall between the A tier and the B tier. It would have been nice to pick up more points and I am sure if we'd had our strongest team throughout the Nations League, things would have been different.
We miss Aaron Ramsey. He makes a huge difference.
Post update
FT: Wales 0-1 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
We never really had the quality, never figured out how to hurt Poland.
You can understand a little bit with the players we have got missing.
We have not been able to pick our best XI in these Nations League games but we have been competitive in every one.
I think it was a good effort tonight, but it wasn't to be.
Post update
FT: Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
It's a frustrating night for Rob Page. The team out there haven't performed to their best.
There were one or two issues for me. The central midfield boys worked tirelessly but you do need to have more creativity in there. You can't afford to just be dogs of war.
That is a conundrum if there's no Joe Allen and no Ethan Ampadu.
But we go to the World Cup still in good spirits. It would have been nice to stay in the top Nations League group but I think most fans have been saying it doesn't matter too much because we have the World Cup to look forward to.
FULL-TIME
Wales 0-1 Poland
That's it.
The free-kick is cleared and the whistle is blown.
Wales, who haven't won in eight, are relegated from the Nations League's top tier.
But, and it's a big but, they are now off to the World Cup.
Post update
Wales 0-1 Poland
Rubin Colwill wins a free-kick in Gareth Bale range.
This will probably be the last kick.
Post update
Wales 0-1 Poland
Superb game management from Poland though. Really have been excellent since going ahead.
YELLOW CARD
Wales 0-1 Poland
Sorry what?
Kieffer Moore booked, crazy.
Literally booked for jumping.
Post update
Wales 0-1 Poland
A scramble in the box but Poland clear.
Wales continuing to push.
Post update
Wales 0-1 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
What a cross from Sorba Thomas. He cuts across it.
Gareth Bale does everything right with the header, great connection, but it hits the bar.
YELLOW CARD
Poland 0-1 Wales
Pushing and shoving in the Polish penalty area and Brennan Johnson and Kamal Glick go into the book.
CLOSE!
Wales 0-1 Poland
Gareth Bale's header rattles off the crossbar after Sorba Thomas' fine cross.
Not Wales' day.
Post update
Wales 0-1 Poland
Weak efforts from Rubin Colwill and Kieffer Moore are blocked.
Post update
Wales 0-1 Poland
Five minutes to be added on.
Post update
Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
We have worked hard all night but I don't think we have been the best going forward.
We have lacked imagination if anything.
Post update
Wales 0-1 Poland
Bartosz Bereszynski off for Robert Gumny.
Post update
Wales 0-1 Poland
Neco Williams' shot is blocked on the edge of the area, but the free-kick was under-hit into his path.
Poor delivery.
YELLOW CARD
Wales 0-1 Poland
Bartosz Bereszynski booked for a blatant foul on Dan James.
Now or never for Wales. They need a goal.
Post update
Wales 0-1 Poland
Rubin Colwill fires across goal, but Wojciech Szczesny deflects the ball away before Brennan Johnson can convert a tap-in.
Post update
Wales 0-1 Poland
Dan James finds some space and his cross is too close to Wojciech Szczesny.
Live Reporting
Michael Pearlman
All times stated are UK
Getty ImagesCopyright: Getty Images 
Latest PostThat's it from Cardiff and the Nations League
FT: Wales 0-1 Poland
So that's all from us and from Cardiff tonight, as we close the chapter on Group A4.
Wales only won a single point in the group and were relegated, but bigger picture, it should give them some good experience ahead of going to a first World Cup since 1958.
We've probably seen tonight just how key it is that Aaron Ramsey and Joe Allen return for Qatar, but Wales' spirits won't be diminished by tonight's result.
If you'd like some highlights, more analysis plus reaction from the Wales camp, tune in to BBC One Wales tonight from 22:30 BST or watch the show using this link
Thank you for following along with us, tonight and throughout this lengthy campaign.
See you on 21 November against the USA!
Nos da.
Post update
FT: Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
I am not worried. You wouldn't want it the other round, would you? You wouldn't want us winning 3-0 tonight and losing to Ukraine.
These fans, these players, they have been to two Euros and now they are going to the World Cup.
I don't think we are a top-tier team. I think we fall between the A tier and the B tier. It would have been nice to pick up more points and I am sure if we'd had our strongest team throughout the Nations League, things would have been different.
We miss Aaron Ramsey. He makes a huge difference.
Post update
FT: Wales 0-1 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
We never really had the quality, never figured out how to hurt Poland.
You can understand a little bit with the players we have got missing.
We have not been able to pick our best XI in these Nations League games but we have been competitive in every one.
I think it was a good effort tonight, but it wasn't to be.
Post update
FT: Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
It's a frustrating night for Rob Page. The team out there haven't performed to their best.
There were one or two issues for me. The central midfield boys worked tirelessly but you do need to have more creativity in there. You can't afford to just be dogs of war.
That is a conundrum if there's no Joe Allen and no Ethan Ampadu.
But we go to the World Cup still in good spirits. It would have been nice to stay in the top Nations League group but I think most fans have been saying it doesn't matter too much because we have the World Cup to look forward to.
FULL-TIME
Wales 0-1 Poland
That's it.
The free-kick is cleared and the whistle is blown.
Wales, who haven't won in eight, are relegated from the Nations League's top tier.
But, and it's a big but, they are now off to the World Cup.
Post update
Wales 0-1 Poland
Rubin Colwill wins a free-kick in Gareth Bale range.
This will probably be the last kick.
Post update
Wales 0-1 Poland
Superb game management from Poland though. Really have been excellent since going ahead.
YELLOW CARD
Wales 0-1 Poland
Sorry what?
Kieffer Moore booked, crazy.
Literally booked for jumping.
Post update
Wales 0-1 Poland
A scramble in the box but Poland clear.
Wales continuing to push.
Post update
Wales 0-1 Poland
Danny Gabbidon
Former Wales defender on BBC Radio Wales
What a cross from Sorba Thomas. He cuts across it.
Gareth Bale does everything right with the header, great connection, but it hits the bar.
YELLOW CARD
Poland 0-1 Wales
Pushing and shoving in the Polish penalty area and Brennan Johnson and Kamal Glick go into the book.
CLOSE!
Wales 0-1 Poland
Gareth Bale's header rattles off the crossbar after Sorba Thomas' fine cross.
Not Wales' day.
Post update
Wales 0-1 Poland
Weak efforts from Rubin Colwill and Kieffer Moore are blocked.
Post update
Wales 0-1 Poland
Five minutes to be added on.
Post update
Wales 0-1 Poland
Nathan Blake
Former Wales striker on BBC Radio Wales
We have worked hard all night but I don't think we have been the best going forward.
We have lacked imagination if anything.
Post update
Wales 0-1 Poland
Bartosz Bereszynski off for Robert Gumny.
Post update
Wales 0-1 Poland
Neco Williams' shot is blocked on the edge of the area, but the free-kick was under-hit into his path.
Poor delivery.
YELLOW CARD
Wales 0-1 Poland
Bartosz Bereszynski booked for a blatant foul on Dan James.
Now or never for Wales. They need a goal.
Post update
Wales 0-1 Poland
Rubin Colwill fires across goal, but Wojciech Szczesny deflects the ball away before Brennan Johnson can convert a tap-in.
Post update
Wales 0-1 Poland
Dan James finds some space and his cross is too close to Wojciech Szczesny.