The five-time world champions were due to hold a public session on Monday afternoon, allowing local fans a close look at their squad. But sources say Ancelotti insisted training be shifted to Ballymore, away from supporters and media.
The move comes after Brazil needed a stoppage-time header from Bournemouth's Rayan to salvage a draw against Australia on Friday night. The result sparked sharp criticism in Brazilian media. Prominent commentator Mauro Cezar Pereira described Ancelotti's work as "pathetic", saying the team lacks tactical identity. UOL columnist Milton Neves asked: "If Brazil struggle to draw with Australia, who are they going to beat?"
Ancelotti called the draw a fair result but blamed the poor pitch surface in Townsville and urged patience as he rebuilds for the next World Cup cycle. Reports from Brazil indicate he has switched to a 4-3-3 formation in training and is trialling as many as seven personnel changes, including an entirely new back four and goalkeeper.
Tuesday night's rematch in Brisbane offers Brazil a chance to respond, while the Socceroos will look to build on what was only the second draw in their nine meetings with Brazil, who had outscored them 21-1 in the previous eight fixtures.