These five nations are most likely to emulate Denmark in 1992, Czech Republic in 1996 and Greece in 2004 at this summer's tournament in France
Poland
Poland have finished bottom of their group both times they have appeared in a European Championship.
Adam Nawalka’s side, however, do not fit the traditional outsiders’ profile of a strong defence and meagre attack.
Poland top-scored in qualifying with 33 goals, 13 of which came from Robert Lewandowski, who also scored 48 for club and country this season.
They also finished just one point behind world champions Germany in qualifying, recording a 2-0 home win over Joachim Low’s side in the process.
Arkadiusz Milik scored in that match and will be central to the country’s success in France.
The 22-year-old became the third-quickest player ever to reach 30 goals and assists for Ajax last season, behind only Luis Suarez and Klaas-Jan Huntelaar.
Poland will need to tighten up defensively in order to have a good tournament.
They conceded 10 goals in qualification – the second-most of any team that qualified in the top two of their group.
4/1 – Poland to win Group C | 40/1 – Poland to win Euro 2016
Austria
Austria played in their only ever European Championship at Euro 2008 by virtue of being co-hosts, exiting at the group stages after picking up just a solitary point.
So if their chances of success at this summer’s showpiece was built on the past, they would have no hope in France.
Thankfully for Austria, however, they aren’t.
Manager Marcel Koller has overseen a near-entire regeneration from the previous squad since taking the job in 2011.
David Alaba, Aleksandar Dragovic and Marko Arnautovic are just three players in the squad from migrant populations – a selection policy that was not prevalent in the national side eight years ago.
Austria impressively topped a qualification group ahead of tournament regulars Sweden and Russia, conceding just five goals.
In attack, they boast Marc Janko.
The 6ft 5in striker scored seven times in qualifying and hit 16 goals in 17 league appearances for club side FC Basel this season.
2/1 – Austria to win Group F | 40/1 – Austria to win Euro 2016
Wales
This summer’s Euros will be Wales’ first major tournament for 58 years and their debut at the European Championship.
And the Red Dragons can take heart from the fact tournament prestige means very little when it comes to progression into the tournament.
Czech Republic’s runners-up finish at Euro 1996 was also their first appearance, while Greece had never previously won a match at the competition before lifting the trophy 12 years ago.
Angelos Charisteas propelled the Greeks to success at that tournament, but Wales have an even better forward to rely on: Gareth Bale, who scored seven of their 11 goals in qualifying.
Chris Coleman’s side are resolute defensively, too, while the four points they took off Belgium en route to earning their place in France showed they can compete against the best sides in Europe.
5/1 – Wales to win Group B | 66/1 – Wales to win Euro 2016
Iceland
With a population of 330,000, Iceland are the smallest country to ever qualify for the Euros which in itself is something to be proud of.
The Nordic nation have already shown they can outperform experienced tournament nations, too, finishing seven points in front of the Netherlands in qualifying.
And Gylfi Sigurdsson aside, the squad’s lack of headline names should not worry the fans.
After all, few were aware of Karel Poborsky and Pavel Nedved’s talents before the Czechs reached the final 20 years ago.
Iceland share Group F with Portugal, Austria and Hungary, with the latter being probably the weakest team in the tournament.
The group will also be one of the last to play their final round of fixtures, thanks to their position in the draw.
As a result, the third-placed team will have the advantage of knowing the minimum requirements for knock-out stage qualification.
With that in mind, Lars Lagerback and Heimir Halgrimsson’s team have a reasonable chance of progressing.
11/2 – Iceland to win Group F | 100/1 – Iceland to win Euro 2016
Romania
The 23-man squad submitted by Romania offers little in the way of surprise or excitement.
There are no major honours, a lack of creativity and an average age of 28.3 – the sixth oldest at the competition.
History suggests, however, that the inclusion of experienced professionals will help the team – with their mean age being exactly the same as Greece’s in 2004.
Drawing further parallels, Romania’s success is based almost exclusively on a strong defensive unit as opposed to any sort of attacking exuberance.
The Tricolours only mustered 11 goals in 10 qualifying matches, but ensured qualification by conceding just twice in the same time period.
To continue the Greece comparison, Otto Rehhagel’s side were breached just three times in Portugal – and not at all at the knockout stage.
If an underdog is to achieve Euros greatness, they will do so by defending.
9/1 – Romania to win Group A | 200/1 – Romania to win Euro 2016
READ: Road to victory: An in-depth analysis of the nations most likely to win Euro 2016
