It's hard to define success in football, largely because there are so few trophies to be won when compared with the amount of clubs fighting for them.
It is made harder still by the fact that only a small amount of those clubs tend to take the lion's share of silverware for themselves while the majority are left starved of success.
The International Federation of Football History and Statistics (IFFHS) attempts to make a viable list of club rankings based on current form, not trophy wins.
And that famous list has just received a timely update.
Click through the enjoy a small sample of the current top clubs in world football.