Arsenal fans were reeling with laughter at Joe Willock after his gaffe in training.
The Gunners are preparing to take on Liverpool at Anfield.
Unai Emery’s side could top the Premier League table with victory – and one star they will look to is Willock.
The 20-year-old has started both league games this season after working up the academy.
Footage has emerged, though, of the younger making a hilarious slip-up.
In the clip, Willock is playing a game of “What Do You Know” with Reiss Nelson.
The stars have to give as many answers to a category and lose when they get three wrong.
The category that comes up is English cities or towns beginning with the letter A.
Nelson starts off with Acton.
But Willock comes up with a surprising answer.
“London,” the midfielder says.
Nelson walks away in shock before falling on the floor in fits of laughter.
“You’ve lost everything,” the 19-year-old says.
Willock holds his head in his hands when reminded they were looking for places beginning with A.
This footage has been viewed more tan 150,000 since it was published on the club’s YouTube channel yesterday.
And the Gunners faithful were left in stitches at their youngster’s gaffe.
“Willock’s had a nightmare,” one supporter said.
Another commented: “I’m a bit worried.”
While a third added: “Just make sure you do the business on the pitch.”
It comes as club legend Robin van Persie gave his verdict on Arsenal’s new star Dani Ceballos.