Liverpool boss Jurgen Klopp hailed Alisson for a crucial save in their 2-1 defeat of Tottenham.
It could have been different had Heung-Min Son doubled the visitors' advantage when clean through in the second half.
Klopp said: “They had a big chance in the second half, and I told the boys at half-time the only problem in this game so far is the result.
“Their chance was just a long kick, not even a pass. Dejan (Lovren) misjudged it, thinks he can let it bounce and Son is away and Ali made a really special save.
“He didn't touch the ball but he was so big in that moment he made life really difficult for Son."