Liverpool goalkeeping coach Jack Robinson said Alisson Becker is calm under pressure, like World Cup-winning Italian midfielder Andrea Pirlo.
FIFA Best Player 2019: Lionel Messi won the FIFA Men's Player of the Year award on Monday with Megan Rapinoe bagging the women's prize.
Liverpool boss Jurgen Klopp revealed that he does not expect the 26-year-old Alisson Becker to be available for several weeks.
Liverpool are aiming to end a 30-year wait to win the Premier League after missing out by only one point to Manchester City last season and laid down an early marker in the title race.
Liverpool will play PSG at Anfield in a Champions League match on September 18.
The club have spent 174 million pounds ($229 million) on midfielders Naby Keita and Fabinho, winger Xherdan Shaqiri and, perhaps most crucially, Brazil goalkeeper Alisson.