Liverpool's manager, Arne Slot, left Diaz out of the squad for a recent friendly match against AC Milan. This decision was likely made because of the speculation surrounding Diaz's future with the team.
According to reports, Liverpool's sporting director, Richard Hughes, wants to replace Diaz with Barcola, who is 22 years old. Barcola is a talented young player who has been playing for PSG.
However, PSG is not willing to sell Barcola to Liverpool. The club sees him as an important player for the upcoming season and does not want to let him go.