Yes. They are all professionals.
It depends on how good you are at the sport
it depends on the player.its the money that the club to which he is playing gives him.
The Detroit Ravens are a Semi-Pro Football team their players don't get paid
Football players get paid more than agents because the coach's want the best players!!
In comparison to American football players and soccer players they certainly are not over paid but for the top players its considered that they may be under paid
I say football, some football players get paid over 120 million a year on an 8-year contract eg. Larry Fitzgerald. Plus, football is a much more popular sport in the US.