There are many different opinions about the salaries of professional football players.
On the one hand, they earn a lot of money and people having less money because of the crisis do not like this situation. Besides, there are many harder jobs with lower wages. In addition, football causes fights and can cause damages.
On the other hand, being a professional footballer in teams such as Real Madrid or FC Barcelona is very difficult. Football also generates lots of money with the sale of football merchandising products (tickets, t-shirts, etc.)
In my opinion, professional footballers must have high wages because their work is difficult but it would also be good they made donations and solidarity actions.