Though Alisson's performances for the Serie A outfit last term were impressive, as Roma reached the semi-finals of the Champions League, in which they were knocked out by the Brazilian's new employers, the £67m fee still represents an astronomical outlay for a goalkeeper.
"I'm really happy, it's a dream come true to wear such a prestigious shirt for a club of this size that is used to always winning", said Alisson.
Liverpool's initial investment of £56million marks a significant show of faith in the 25-year-old, who started all five of his country's matches at the World Cup in Russian Federation.
Throw in 176 Italy caps and a World Cup triumph in 2006 and it's easy to see why we'll all be telling our grandkids about Buffon as being the greatest ever in years to come. Real Madrid though, will have to wait on their goalkeeping acquisition for now, with Chelsea only likely to let Courtois leave after they sign a replacement.
At over £30m more than what was spent to recruit last season's star, Salah, from the same club, it seems Liverpool have set a new benchmark for record spending which even they may find hard to justify. And if they manage to win the Premier League and/or the Champions League in the coming seasons, the money spent on Alisson will be worth it several times over. "They were quite excited, so we did it", Klopp told Liverpoolfc.com.
There was a world-class goalkeeper on the market, and the club gave us the opportunity to sign him.
Finally, it seems - having been provided with undisputable evidence - clubs are starting to open their eyes to the value of the goalkeeper.
The Premier League star has been exceptional during Russian Federation 2018 for his nation and it looks like he may finally get his move to the La Liga.
Last season, Klopp's side relied heavily on the pressing, speed and quality of their front three last season, but now have the look of a more well-rounded outfit after stiffening their spine.
"That game [at Anfield] definitely did have an influence but I also watched other games".
Liverpool's defence markedly improved last season, conceding the fewest amount of goals (38) in a single campaign since 2009/10.