Boxing body AIBA has sidelined all 36 referees and judges used at the Rio de Janeiro Olympics until an investigation has been concluded, it said on Thursday.
Anthony Joshua is set to defend his IBF version of the world heavyweight title in November but could instead now face Wladimir Klitschko, who has seen two scheduled rematches against Tyson Fury postponed.
Britain's world heavyweight boxing champion Tyson Fury has been drinking and using cocaine to help him deal with depression, he told Rolling Stone magazine in an interview released on Tuesday.