Alexis Mac Allister has changed his mind on Alisson 
“I tell him, ‘You know, when I was at Brighton, I didn’t understand what the hype was all about. I didn’t really rate you. Now, damn! I have to admit, you’re the best. Well, ok, you, Dibu [Martinez] and Courtois.
He hasn’t invited me to his house for a BBQ yet, so he has this season ahead to keep to his word.
Alexis Mac Allister ‘Didn’t Rate’ One of Liverpool’s Best Players After Facing Him

In 2024/25, when Slot became just the fifth manager in the history of the Premier League to win the title in their maiden term, Mac Allister manned the midfield – often alongside Ryan Gravenberch and Dominik Szoboszlai – 49 times across all competitions.
Mac Allister’s services, in the summer of 2023, were snared from Brighton while the much-beloved Jurgen Klopp was in charge of the Merseyside-based outfit – and his £35 million price tag is now considered a shrewd bit of business given that the 26-year-old is now seen as one of world football’s best midfielders.
Mac Allister Named Liverpool Ace He Previously ‘Didn’t Really Rate’ at Brighton

Until seeing him up close and personal, Mac Allister wasn’t wholly convinced of goalkeeper Alisson Becker, the club’s No.1 since his arrival in the summer of 2018, and his status among world football’s greatest goalkeepers. According to ESPN UK, he said:
“I tell him ‘You know, when I was at Brighton, I didn’t understand what the hype was all about. I didn’t really rate you. Now damn! I have to admit, you’re the best.’”

“Well, ok, you, Dibu [Emiliano Martinez] and [Thibaut] Courtois,” the midfielder continued before joking that he’s not been invited to the goalkeeper’s BBQ as yet. “He hasn’t invited me to his house for a BBQ yet, so he has this season ahead to keep to his word.”
There are not enough superlatives to describe how important Alisson has been to Liverpool’s success, especially across a managerial transition from Klopp to Slot. Indispensable when fit, the 32-year-old’s shot-stopping ability is second to none.