Former Brazil goalkeeper Claudio Taffarel believes that Liverpool target Alisson can become as good as Thibaut Courtois and David de Gea.
Alisson shone last season between the sticks for Roma and has been eyed by Liverpool, Real Madrid and Paris Saint-Germain in the current transfer window.
Roma are claimed to have slapped a €100m asking price on Alisson's head, but Taffarel, who won over 100 caps for Brazil, revealed the goalkeeper told him he would be happy to remain in the Italian capital.
Taffarel told Tele Radio Stereo: "He is very happy with Roma and the transfer rumours are just rumours.
"I do not know what will happen, but he told me he would be happy to stay at Roma", he added.
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And Taffarel has no doubt over just how good he feels his countryman can become, insisting he can match the world's best, such as Manchester United's De Gea and Chelsea's Courtois.
"Alisson can be amongst the best in the world, alongside Courtois, De Gea and [Manuel] Neuer."
Roma are hoping to see off clubs interested in Alisson and keep him at the Stadio Olimpico at least until the end of next season.
Alisson kept 22 clean sheets in his 47 appearances for Roma last season, with the Giallorossi reaching the Champions League semi-final stage.
