U.S. women disqualified from 4x400m relay after baton fail

American relays drop the batons

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US women disqualified from 4x400m relay after baton fail - Sports

Olympics: USA mixed 4x400m relay controversially DQ'd - Yahoo Sports

U.S. women disqualified from 4x400m relay after baton fail

Noah Lyles, Sha'Carri Richardson anchor U.S. sweep of 4x100 relays - ESPN