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BBC Scotland reporter Alasdair Lamont at Hampden

"Hampden is already a cauldron of noise - although that's because a couple of thousand Polish fans have made their way inside early. They have plenty to be noisy about though, with their team on the brink of Euro 2016 qualification. To deny them that immediate pleasure, Scotland surely have to reproduce the type of form they showed in Warsaw, when the teams drew 2-2. If the Scotland that under-performed in Dublin and Tbilisi shows up tonight, the Poles can start booking their flights to France tomorrow."

Scotland: Marshall, Hutton, Russell Martin, Hanley, Whittaker, Forrest, Brown, Darren Fletcher, Ritchie, Naismith, Steven Fletcher. Subs: Gordon, Robertson, Greer, Berra, McArthur, Maloney, Russell, Griffiths, Dorrans, Chris Martin, Rhodes, McGregor.

Poland: Fabianski, Piszczek, Pazdan, Glik, Rybus, Grosicki, Krychowiak, Maczynski, Milik, Blaszczykowski, Lewandowski. Subs: Szczesny, Cionek, Jedrzejczyk, Szukala, Jodlowiec, Linetty, Wawrzyniak, Olkowski, Mila, Sobiech, Borysiuk, Boruc.

Referee: Viktor Kassai (Hungary)

Poland may be six points ahead of Scotland but if they were to lose at Hampden, Scotland could leapfrog them, by dint of their better head-to-head record, with a win over Gibraltar.

That scenario relies on the Irish winning in Poland on the same day.

So, Scotland need a minimum of four points and the right combination of results elsewhere.

Scotland's fate is not in their own hands.

If the Republic of Ireland lose to Germany and Poland in their final game, then Scotland can clinch third place by taking four points from their remaining games against the Poles and Gibraltar.

This would leave Scotland and the Republic of Ireland on 15 points apiece, but Scotland would go third thanks to their head-to-head record.

If Scotland win their final two Group D matches, even two draws for the Irish against Germany and Poland would not be enough for them - Poland would finish second on 18 points, Scotland would be third with 17 points ahead of Martin O'Neill's Ireland for that win and a draw against them.

One win for the Republic against either of their opponents would end Scottish hope of catching them.

No-one in Group D has qualified for the finals in France next summer, but Germany, Poland and the Republic of Ireland can still finish in the top two. Group leaders Germany, on 19 points, need only one more point to qualify. They play third-placed Republic of Ireland, who have 15 points, in Dublin this evening.

Poland, on 17 points, take to the pitch at Hampden knowing a win tonight secures their finals place.

Georgia and Gibraltar, the latter Scotland's final opponents in the Algarve on Sunday, are out of contention.

For Scotland, it's all about clinching third place and the prospect of a double header against another third-place team from the qualifying groups. They are currently four points behind the Irish.

Now, as the teams warm up at Hampden, let's have a look at some of the qualification scenarios...

It's, arguably, a surprise that Hull's Shaun Maloney is only on the bench - he has started the last 10 games for Scotland.

Former Scotland captain Willie Miller

"I think Steven Fletcher is the man to start with. I wouldn't have been unhappy if both of them (he and Leigh Griffiths) had played. Matt Ritchie is untried at this level. It's OK playing well for your club. I haven't seen him turn it on in the dark blue jersey so far. Steven Whittaker comes back and gets the nod. I think that is down to Gordon Strachan going for experience. It's going to take a big performance to get the full three points. Everybody is surprised that Shaun Maloney is not starting. He has been the talisman."

Scotland manager Gordon Strachan

"The secret is, if you keep the ball long enough, the chances of them scoring a goal is reduced."

Sunderland's Steven Fletcher will play up front on his own, so there is no starting place for in-form Leigh Griffiths. Bournemouth's Matt Ritchie also starts, but there's no place in the starting XI for Shaun Maloney.

Some interesting team news coming up...

Good evening and a warm welcome to our coverage of Scotland's Euro 2016 qualifier against Poland. Kick-off is in 45 minutes' time. I'm not sure I'll last until then - my guts are churning!