Aaron Briggs was in disbelief as Arne Slot was the only member of the Liverpool coaching staff to succeed in the crossbar challenge.
Some of the Reds’ backroom staff took part in a friendly bet ahead of team training.
The reigning Premier League champions are set to take on Tottenham in the capital on Saturday evening.
Aaron Briggs reacts to Arne Slot’s training feat
The club’s set-piece coach was spotted exclaiming, “Oh, no!” and turning away as Slot’s lofted ball connected with the upright.
“I like the cameraman behind,” the Dutch head coach said, before walking off.