Liverpool are set to bring in 17-year-old Brazilian goalkeeper Marcelo Pitaluga from Fluminese for £1m plus add-ons, with the promising teenager likely to compete with Caoimhin Kelleher in the club's Under-23s.
Pitaluga comes highly recommended by compatriot Alisson Becker, the Reds current number one netminder, and was part of the Brazil Under-17 squad that won the World Cup last year.
"I am very grateful to Fluminense," he posted on his Instagram page.
"I was 10 years at this club, from futsal, passing through, until I reached the professional ranks. I have always been treated very well and had all the assistance necessary for my development, both personally and as an athlete.
"This opportunity that came up will be very important to me."
Kelleher has had another strong pre-season with the senior side and remains extremely well thought of.
He started in Sunday's Premier League 2 Merseyside derby against Everton, producing an excellent performance in Liverpool's 1-0 win.
He was brought into Stephen Kenny's Republic of Ireland senior squad a fortnight ago for the Nations League double-header against Bulgaria and Finland.
The Corkman will hope to push Adrian close this year as the two jostle to be Jurgen Klopp's second-choice stopper.
Adrian got much more game time last season than had been anticipated due to a couple of Alisson injuries.
The former West Ham keeper played 11 times in the league, while Kelleher made four first-team appearances in all competitions.