Last month, the US Women's National Team were just the latest female athletes to speak out about the inequities in the pay of male and female players within their sport.
Unfortunately, the gender pay gap is not a new issue but some sports are looking to properly reward the contributions of their female athletes.
Tennis still leads sport as the most gender-equitable professional sport with male and female players earning equal prize money at the grand slam level.
As a result their top players, in particular Serena Williams and Mara Sharapova, are the few to place regularly in the World's 100 highest paid athletes".
That's not to say they don't still have to keep fighting to retain their equal status.
It took them some time but tennis' close cousin squad recently announced that they too will be providing equal tournament prize money for the first time.
The winners of the 2017 men’s and women’s World Squash Championships will each be awarded $45,000 with Professional Squash Association chief Alex Gough saying “a huge step forward that everyone in the sport can be proud of”.
The New York (1984) and Boston (1986) marathons were among the first to get with the program. Nowadays the London Marathon has joined the club with equal for the male and female winners, although the minor place getters still don't quite have equality.
The IAAF introduced equal prize money for its world championships in 1995.
Australia's own Stawell Gift introduced equal prize recently with first place taking home $40,000.