Alisson and Roberto Firmino will be granted an extra rest from Liverpool's preseason after the Copa America final.
The Brazil stars will play Peru in Rio de Janeiro on Sunday.
Jurgen Klopp has told them to take three weeks rest after the match, which means they will link up with their teammates at the end of July, according to the Liverpool Echo.
The duo will miss friendlies against Tranmere, Bradford City, Borussia Dortmund, Sevilla and Sporting Lisbon.