Jurgen Klopp was left furious in the Liverpool dugout after Joe Gomez attempted a wild shot at goal while the Reds were trailing 2-0 against Atalanta.
Liverpool's hopes of giving Klopp a dreamlike Dublin send-off in the Europa League final were severely dampened as the Italians dominated at Anfield on Thursday evening.
Defeat ended Liverpool's previous 33-game unbeaten home streak as Gianluca Scamacca's brace and an 83rd-minute Mario Pasalic strike secured a magic victory for the Serie A visitors.
Gomez - who has never scored a goal for the Reds in 218 appearances across all competitions - decided to take things into his own hands with an effort from range.