Not all football clubs are made equal, with various sides across the world boasting unbelievable fanbases and deep trophy cabinets.
Plenty of clubs in Europe and South America have enormous global followings, with supporters cheering them on across the world.
Here are the 30 biggest clubs in world football.
Let's start with the biggest club in world football: Real Madrid.
The Spanish giants are gargantuan both domestically and in Europe, with a record 14 Champions League/European Cup trophies shining brightly in their vast cabinet.
They have boasted some of the best players the world has ever seen from all across the globe, with the pinnacle of a footballer's career donning that fabled white shirt.
Paris Saint-Germain had once sat in the shadows of France's biggest clubs, with only the occasional trophy to boast in the capital. However, the arrival of Qatari investment transformed them into a European powerhouse and easily the strongest side in Ligue 1.
The likes of Lionel Messi, Neymar and Kylian Mbappe have all graced Parc des Princes in recent seasons, with PSG now a global brand associated with flair, style and excitement.
Tottenham's significant trophy drought over the past 15 years hasn't detracted from their status as one of England's most followed clubs. The north London side are a colossal force in the capital and have always been easily identifiable for their attractive brand of forward-thinking football.
The arrival of Ange Postecoglou has lifted the Spurs faithful and dreams of glory are not too far away given the Australian's impressive start to life in English football.
Boca Juniors are an institution in Argentina and one of the biggest clubs in South America. They have claimed a staggering 35 Primera Division
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