Ancelotti has confirmed the 18 year-old will be in the Selecao squad for the finals in the USA.
"The guy that will surprise you is someone that is not so well known," Ancelotti told BBC Radio 5 Live's Euro Leagues podcast.
"We have a lot of attacking players. We have a lot of talent and a lot of different profiles. And if I have to give you a name, Estevao is one of the rising talents of Brazil."
Estevao made his Brazil debut at the age of 17 in September 2024 and has five goals in just 11 appearances for his country.
Ancelotti added: "He is a really big talent.
"He is a really good finisher, so he is someone that can dominate in Europe as a talent for the next years."
