Alisson has heaped praise on former Liverpool teammate Rafael Camacho.
The 19-year-old left the Reds for Sporting Lisbon this summer, in a deal reportedly worth £5m.
And Brazil international Alisson had nothing but kind words to say about the talented youngster.
Speaking to Record, he said: "He is a young man with incredible potential and personality.
"He was already showing this at Liverpool by training on an equal basis with the more experienced players."