Alisson hailed the importance of Roberto Firmino to Liverpool after the forward's winning goal against Flamengo in the Club World Cup final.
Firmino netted two winners in as many games for the European champions at the tournament, which Liverpool won for the first time thanks to Saturday's 1-0 victory.
Liverpool needed extra time to get past Flamengo, with Firmino netting the only goal in the 99th minute.
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The 28-year-old is often questioned due to his lack of goals – he has six this season – despite his vital contributions, but Brazil team-mate Alisson talked up his importance.