It is a close between Real Madrid Barcelona and Manchester United.
Manchester united
Soccer is the most popular sport in the world. So it would be logic that soccer would have the most fans.
Manchester united has the most fans in the world !!!
Cristiano Ronaldo has the most fans in facebook and the whole world, and Messi is the second one to have the most fans in facebook or in the world.
Real Madrid C.F
Real Madrid C.F.
spanish league llvb
Barcelona does it has the highest fans towards it in the world.
Yes, by far, soccer is the most popular sport in the world. Note that for such fans, soccer is football. The only country that has am. football is surely USA. so soccer fans are amazingly huge .
football or soccer with trillions of fans world wide.
Soccer, 3.3-3.6 billion fans in the world
Yes. Football is massive in Italy, the fans are probably the most passionate fans in the world.