Every Champions League winner has been ranked from worst to best - with Barcelona's 2009 side coming out on top.
FourFourTwo have ranked all 27 squads to have won the tournament and the Catalan giants, managed by Pep Guardiola, stand above the rest.
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They defeated Manchester United 2-0 in the final and completely dominated the tournament from beginning to end.
Guardiola's Barcelona is often regarded as the greatest team in club football history and it isn't hard to see why.
United's treble winners of 1999 are in second place while Bayern Munich, who play in tonight's final against Paris Saint-Germain, are in third after their treble winning season of 2013.
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Check out the full list below.
27. Marseille (1993)
26. Chelsea (2012)
25. AC Milan (2003)
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24. Porto (2004)
23. AC Milan (1994)
22. Manchester United (2008)
21. Inter Milan (2010)
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20. Real Madrid (2016)
19. Borussia Dortmund (1997)
18. Real Madrid (1998)
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17. Liverpool (2005)
16. Juventus (1996)
15. Real Madrid (2000)
14. Liverpool (2019)
13. AC Milan (2007)
12. Barcelona (2006)
11. Bayern Munich (2001)
10. Barcelona (2011)
9. Real Madrid (2002)
8. Real Madrid (2014)
7. Ajax (1995)
6. Real Madrid (2017)
5. Real Madrid (2018)
4. Barcelona (2015)
3. Bayern Munich (2013)
2. Manchester United (1999)
1. Barcelona (2009)
In tonight's showdown, Bayern are looking for their sixth Champions League title while PSG are playing in their first ever final.
The Bundesliga outfit last won the trophy in 2013 and current goalkeeper Manuel Neuer, who was also part of that squad seven years ago, thinks the current crop are much stronger.
"We are better positioned across the board," he stated per Goal. "Now we have a class that not only includes the 18-man squad, it is fantastic what a great team we have.
"Calm characterizes him, especially before games like this," Neuer said. "He prepared us very well for the games, no matter which opponent we played against.
"We always have a plan. You can see the result on the pitch."
Who do you think is the greatest Champions League team ever?
Let us know in the comments below.
Featured Image Credit: PA ImagesTopics: Liverpool, Marseille, Football News, Chelsea, Football, Manchester United, Barcelona, Ajax, AC Milan, porto, Borussia Dortmund, Juventus, Milan, Champions League, Bayern Munich, Real Madrid, Inter, Inter Milan