This is dated, but makes the point.
I think the same applies to soccer.
How women’s tennis fought for equal pay
When the women in the U.S. Open tournament take the court on Sunday, they’ll compete for the same prize money as their male peers. Since 2007, when Wimbledon and the French Open joined the other Grand Slam tournaments in giving equal prize money to men and women, tennis has broken down the gender pay gap.
....
Q. What do you make of some of the responses from male players, such as the idea that women should also play five sets if they're going to be paid equally?
A. It's such an old discussion. Really. We said in 1973, and we continue to say in 2014, we're ready, willing and able to play five sets if that's what they'd like us to play. Our athletes are putting in the same effort, same training, and they deserve to be paid equally.
This issue of parity is not a women's issue. It's a societal issue that needs to be resolved by men and women. Having sponsor support and male leadership support in this area has been a key to our success.
article:
http://www.washingtonpost.com/news/on-leadership/wp/2014/09/05/how-womens-tennis-fought-for-equal-pay/
Do something positive.