ALISSON gifted Gabriel Martinelli a tap-in with a shocking blunder during Liverpool's clash with Arsenal.
With the match finely poised at 1-1 in the 67th minute a long, aimless ball sailed towards Alisson.
Virgil van Dijk attempted to shield his goalkeeper from the lurking Martinelli.
But the Dutchman couldn't have accounted for what happened next.
Rather than boot the ball away, Alisson bafflingly sprinted past the ball.
Martinelli could scarcely believe his luck, tapping the ball into the unguarded net to give Arsenal a priceless 2-1 lead.
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Fans couldn't believe what they'd just seen, with one writing: "Allison that is CRIMINAL… game of errors!"
While a second posted: "What a calamity from VVD and Allison."
And a third wrote: "What are Allison and Van Dijk doing?"
Another added: "Alisson & VanDijk the chuckle brothers there. Deary me."
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Arsenal had gone 1-0 up via Bukayo Saka's 14th minute tap-in.
Liverpool pegged them back in more farcical circumstances on the stroke of half-time, when dilly-dallying by William Saliba allowed Luis Diaz to prod the ball in off Gabriel Magalhaes.
Alisson's nightmare moment then allowed the Gunners to regain the lead.
Things then went from bad to worse for the visitors, with Ibrahima Konate receiving a second yellow card for pushing Kai Havertz.
Leandro Trossard then sealed Arsenal's 3-1 win by squirming the ball through Alisson's legs and in.