As Liverpool’s dwindling title hopes endured a near-fatal blow with a 3-1 loss at Leicester City’s top-four rivals, Alisson had another horror show.
Jurgen Klopp’s champions had taken a valid lead through Mohamed Salah’s 23rd season goal.
However, the Foxes leveled after VAR overturned an offside ruling that excluded James Maddison’s free-kick ten minutes from time.
Alisson then collided with Ozan Kabak, the Reds’ debutant, to allow Jamie Vardy to sprint clear gleefully and shoot into an empty net.
Harvey Barnes put the icing on a dramatic late turnaround, with a clinical third with the visiting defense.
The consequence is a step up to second for Leicester. Liverpool remains fourth but looks set to face a Champions League qualification contest.
Leicester – Liverpool 3-1
Goals: Salah (67), Maddison (78), Vardy (81),Barnes (85)
Leicester: Schmeichel, Amartey, Evans, Söyüncü, Ricardo Pereira, Ndidi, Tielemans (Choudhury 87), Albrighton (Perez 74, Mendy 90), Maddison, Barnes, Vardy.
Liverpool: Alisson, Alexander-Arnold, Kabak, Henderson, Robertson, Milner (Thiago 17), Jones (Oxlade-Chamberlain 75), Salah, Firmino, Mane.