When Olympic medalist Allyson Felix became pregnant, Nike was prepared to cut the terms of her endorsement deal by as much as 70 percent. She was told to “know your place and just run.”

Seven months into the pregnancy, her daughter Camryn was delivered by emergency C-section and had to live for more than a month in the NICU.

Following the public controversy, Nike altered its policy, promising not to reduce a pregnant athlete’s salary for 18 months, starting eight months before her due date.

Felix left Nike, created her own brand of running shoes called Saysh, and worked with a new sponsor, Athleta, and the Women's Sports Foundation to create a child care fund for athletes who are mothers.

Her Olympic medals now total 11— the most decorated American track and field athlete in Olympic history.