The Barcelona teams managed under Manchester City boss Pep Guardiola are considered to be some of the best sides in football history.
When it came to the former Barça manager's 2011 side, however, it was on a whole different level.
The Spanish club arrived at Wembley Stadium to take on Manchester United in the Champions League final.
Before the match, though, Barcelona showed off an unreal warm-up session of rondo.
If United players were watching them, then no-one can blame them for feeling a little bit on edge before the match.
Check it out below.
Barcelona's rondo warm up before the Champions League final at Wembley. :flushed:
They make it look so easy. :muscle: pic.twitter.com/dsEvwFo4WM
- Football Tweet (@Football__Tweet) 21 November 2018
Barcelona put on a superb display against United during the match, as Pedro opened the scoring before Wayne Rooney fired back with an equaliser.
Lionel Messi added a fantastic second and David Villa put United fans -- and their players -- out of their misery with a third.
After the final, former Red Devils boss Sir Alex Ferguson called Guardiola's Barça side "the best team I have faced."
"Nobody's given us a hiding like that, but they deserve it," he added (via BBC Sport).
"They play the right way and they enjoy their football. They do mesmerise you with their passing and we never really did control Messi. But many people have said that."
Think Guardiola this season has proved just how much his influence made the 2011 Barcelona team the best football side ever
- max (@maxswann) 13 December 2017
Guardiola's Barcelona team in 2011, incredible team
- Stephen Jackson (@SmoggyOnTour) 22 April 2018
I wrote this on Guardiola's Barcelona, winning the 2011 #ChampionsLeague. It's from #EatingRosesForDinner. pic.twitter.com/ohS9mOMMAk
- Musa Okwonga (@Okwonga) 4 November 2015
Was Guardiola's 2011 Barça side the best team in the club's history?
Let us know in the comments.
Featured Image Credit: The Football Feed
- Barcelona's rondo warm-up before the Champions League final in 2011 will never be beaten
- Barcelona's Champions League fate is in the hands of Viktoria Plzen, hilarious footage proves they're 'doomed'
- 14 Years On From John Terry's Infamous Champions League Final Slip
- Champions League Quarter-Final And Semi-Final Draws Simulated, Throws Up Blockbuster All-English Tie