Lilly Ledbetter, a supervisor at a Goodyear tire plant in Alabama, discovered she was receiving less pay than men who worked the same position. Her case led to a monumental law on pay equity.

The U.S. Soccer Federation is offering the men's and women's senior national teams the same pay structure, years after the women's team filed a major lawsuit over equal pay concerns.

NPR's Ailsa Chang speaks with director Andrea Nix Fine and USWNT player Jessica McDonald about their new documentary LFG, which follows the U.S. Women's Soccer Team struggle for equal pay rights.