Three years ago Trent Alexander-Arnold watched from the stands at Anfield as Liverpool produced another remarkable European comeback to beat Borussia Dortmund.
On Tuesday the England international will be on the pitch trying to replicate a similarly difficult task as they seek to overhaul a 3-0 deficit from the first leg of their Champions League semi-final against Barcelona.
Back in April 2016 Liverpool faced their Bundesliga opponents on the back of an encouraging 1-1 draw in Germany.
However, they found themselves 4-2 down on aggregate with 24 minutes remaining but edged through with an added-time winner from Dejan Lovren.
“I was here as a fan. It was one of those special nights. You always remember where you are when those games happen,” said Alexander-Arnold, who sat out the first leg as manager Jurgen Klopp surprisingly selected Joe Gomez at right-back.