Mary Bono has resigned from her role interim boss of USA Gymnastics after just four days.
Bono, 56, received criticism after appearing to oppose Nike's advertising campaign with Colin Kaepernick – the NFL player who initiated anthem protests over racial injustice.
This caused Olympic champions Simone Biles and Aly Raisman to question Bono’s appointment.
Bono had previously worked for a law firm which represented USA Gymnastics and its ex-team doctor Larry Nassar during a sex abuse scandal.
Nassar has been sentenced to more than 300 years in jail for abusing gymnasts.
His victims included 2016 Olympic gold medallists Raisman and Biles.