Walker was the former CEO and head coach for Excel Aquatics. After USA Swimming notified Walker of their intention to ban him, he was terminated from Excel in May.
A spokesman for USA Swimming would not comment on why they intend to ban Walker, but a spokesman for Metro police confirmed that in January two men came to police with complaints that Walker sexually abused them as young swimmers.
Metro police spokesman Don Aaron said the FBI was alerted because swim trips were taken out of state.
Aaron said because the alleged abuse happened more than 20 years ago, the statute of limitations had passed and the case was cleared.