Cricket Australia CEO James Sutherland had earlier announced that the Australian trio of Smith, Warner and Cameron Bancroft will return home and not play the fourth and the final Test against South Africa starting Friday. Sutherland also said Darren Lehmann will continue as Australia coach.
Following this, Sutherland has officially reported Steve Smith,David Warner and Cameron Bancroft for breaching article 2.3.5 of Cricket Australia's Code of Conduct.
Matthew Renshaw, Glenn Maxwell and Joe Burns have been named their replacements.
"All three players reported will depart South Africa tomorrow. The replacement players will fly to Johannesburg over the next 24 hours to join the squad for the Fourth Test against South Africa. The three replacement players are Matthew Renshaw, Glenn Maxwell and Joe Burns," Cricket Australia release said.