Alisson began his career at Internacional, where he made over 100 appearances and won the Campeonato Gaúcho in each of his four seasons at the club. In 2016, he completed a €7.5 million transfer to Roma where he initially served as understudy to Wojciech Szczęsny before breaking into the starting line-up. In July 2018, Alisson signed for Liverpool for an initial fee of €62.5 million (£56 million), which could rise to €72 million (£66.8 million); a world record fee for a goalkeeper at the time. In his first season at the club he received the Premier League Golden Glove for most clean sheets in the league (21), and kept another clean sheet in the UEFA Champions League Final to help Liverpool win their sixth European Cup. The following season he kept a clean sheet in the final of the FIFA Club World Cup as the team won in extra time to clinch the trophy. He also played an integral part in Liverpool's 2019–20 Premier League title-winning effort, which ended the club's 30-year league title drought. On 16 May 2021, he also became the first goalkeeper to score a goal for Liverpool, as well as the first goalkeeper to score a matchwinner in a Premier League fixture, following a 95th minute-winning header against West Bromwich Albion.