Liverpool will be up against it in their Europa League quarter-final second leg away to Atalanta on Thursday.
The Reds fell to a shock 3-0 loss at Anfield and will now have to pull off an incredible turnaround to reach the semi-finals.
Luckily for Jurgen Klopp's side, Liverpool have a sublime catalogue of European comebacks to take inspiration from.
We've compiled six of the best below.
Liverpool 4-0 Barcelona (Agg: 4-3) - 2019
After losing their 2019 semi-final first leg 3-0 in Barcelona, Liverpool staged one of the greatest turnarounds the Champions League has ever seen.