Hearing a sentence involving 'Liverpool goalkeeper' and 'strange mistake' has been a pretty regular occurrence over the past couple of seasons.
Whether it was Adam Bogdan dropping clangers from corners, or Simon Mignolet suffering what have been fairly regular lapses in concentration, the man between the sticks at Anfield has often given fans nightmares.
Loris Karius - installed as Liverpool's number one earlier this season - was supposed to change all that and, for the most part, the German has done that with some assured displays. That's what makes one moment of madness during Liverpool's 2-0 win over Sunderland on Saturday even more bizarre.
Thanks in large part to Pep Guardiola at Manchester City, we've heard an unusual amount this year about the ability of goalkeepers to pass the ball out from the back. It is basically why Joe Hart is between the sticks at Torino right now rather than the Etihad.
But, whilst Hart may not be the best will the ball at his feet, we are pretty certain he has never done what Karius managed to achieve in the first half at Anfield today. In fact, we're pretty sure very few 'keepers in the world have managed it.
That's because Karius, presumably desperate to increase the pace during a frustrating first 45 minutes for Jurgen Klopp's men, somehow managed to present Sunderland with a corner by kicking his own goal kick over the dead ball line.
The bizarre incident left plenty of onlookers lost for words but was missed by the majority of TV cameras covering the game.
What was he thinking?
Fortunately, the people in the press box at Anfield did get a replay of a moment Karius will be trying to forget...
As you might expect, his comical error didn't go unnoticed by fans on social media...
Fortunately for the German 'keeper, Sunderland didn't take advantage of his generosity from the resulting corner and, with a clean sheet to his name, it didn't turn out to be such a bad afternoon for Karius in the end.
The same cannot be said of his Brazilian teammate Philippe Coutinho, however. That's after arguably the Premier League's player of the season so far was stretchered off in the first half with what looked like a serious ankle injury.
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