Roma icon Francesco Totti conceded the Italian club had to sell Alisson to Liverpool as they could not turn down the world-record fee for a goalkeeper.
Brazil international star Alisson joined Premier League side Liverpool in a deal that could earn Roma up to £65 million (€73m/$85m).
Alisson played a key role as Roma finished third in Serie A and reached the Champions League semi-final last season.
Former attacker Totti, however, admitted Roma could not say no to the money on offer despite Alisson's quality.
"We're building a young team for the future," Totti told Sky Sports Italia .