Persepolis is the greatest pro football team.
EAGLES Steelers have the most fans
That is debatable. Michigan has had the most fans in a stadium in a game, and there are fans growing everyday.
United
cowboys
The NFL team with the most fans is the Dallas Cowboys. The Green Bay Packers have the second most fans, followed by the Denver Broncos, and the NY Giants.
Manchester united - 330 million fans worldwide
Real Madrid
FC Barcelona
Steelers
Chivas
Panathinaikos
Eping forest