"I'd say his greatest strength, other than his technical ability, is that he's very relaxed, very intelligent with the way he plays - he's mentally very strong", Taffarel told Italy's Radio Stereo.
He is likely to be Brazil's No 1 when they begin their World Cup campaign against Switzerland on Sunday.
Alisson - according to himself - is no different.
Alisson, meanwhile, is hoping his future gets sorted out before the World Cup gets underway.
"I believe that it will all be resolved before the start of the World Cup, or at least that is what I hope".
"If it's not resolved before the World Cup, then it will be discussed after it because my head will be focused only on Brazil [during the tournament]".
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"I have left the responsibilities of negotiations to my representatives".
Personally, if I had to choose between Alisson and Fekir I would chose the Brazilian all day as signing a top goalkeeper is a priority while an attacking midfielder is a luxury - regardless of how flawless he is for Jürgen Klopp's system.
"Let's see if something happens this week", Alisson told reporters following Brazil's 3-0 victory over Austia.
"There are some possibilities and we are working on all of them, with respect to Roma". Right now, I'm focused only on the World Cup. It does not necessarily represent the position of Liverpool Football Club.
I'd love both obviously.