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Alisson Becker's wife Natalia has confirmed she underwent surgery recently, explaining the Liverpool goalkeeper's decision to leave the clubs tour of the Far East.

The Brazilian goalkeeper travelled back to Brazil last week and missed the friendly win over Yokohama Marinos, as Arne Slot's men continued their strong form.

The reasons for his premature exit were unclear, with Liverpool citing he had flown home for 'personal reasons'.

Giorgi Mamardashvili played in his absence, with Freddie Woodman and Armin Pesci among the substitutes, and it is expected that Alisson will again not be involved in the friendly double-header against Athletic Bilbao at Anfield on Monday.

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He said recently: ""When I was a child, I always watched some videos on YouTube of goalkeepers, and I remember some Liverpool goalkeepers as well

Liverpool has a big goalkeeper legacy and I want to try to write my own chapter in this goalkeepers' legacy

"Of course, what I can tell about Ali, he's one of the best goalkeepers in the world right now and I am so happy to work with him

I like challenges and I'm here to just give my best and help the team."

Woodman and Pesci will provide cover for Alisson and Mamardashvili, while goalkeeping coaches Claudio Taffarel and Fabian Otte also moved on.