Watch: Brutal Alisson blunder gifts Vinicius easy goal

What. Is. Happening?

Liverpool came out flying in their Champions League last-16 affair against Real Madrid on Tuesday, building a 2-0 lead after just 14 minutes thanks to a sumptuous Darwin Nunez flick for the first goal and a terrible error from Thibaut Courtois on the second.

But Vinicius Junior erased the deficit.

First, the Brazilian fired a wicked strike into the bottom corner to halve the deficit. Then, incredibly, he was gifted a second tally by Liverpool goalkeeper Alisson, who did his opposite number Courtois one better by smacking the ball against Vinicius and watching helplessly as it looped back into his net.

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There's just something about this fixture and goalkeeper howlers.

Real Madrid added three more unanswered goals after the interval to claim a resounding 5-2 win at Anfield.