Tottenham have experienced their share of painful comebacks in the past, and the FA Youth Cup saw their under-18s suffer similar heartbreak.
Spurs visited Stamford Bridge with a 2-0 lead from the first leg, and all was going according to plan when Shayon Harrison scored to put them 1-0 up on the night.
Then followed a capitulation. Chelsea hit form, and began scoring relentlessly, going 5-1 up on the night, before Harrison scored a late penalty to give false hope in the dying minutes.
Speaking to Spurs TV after the game, Harrison said his teammates were devastated by the turnaround.
He said: "Everyone is really distraught. We felt that after scoring the third goal, going 3-0 up, we had control of the game and could see it out but it wasn't our day.
"Everyone has played a part in getting here and we would have liked to go all the way really. I'm really pleased to help the team out and score goals, I'm disappointed with the result as you would expect."
Harrison himself netted a terrific opening goal, an over the shoulder volley which left Chelsea's goalkeeper with no chance. After netting four past Chelsea's under-18s at the weekend in a 6-4 loss, the 17-year-old striker can look back on a week with bemusement and disappointment where he scored six goals against the same side, yet still ended up twice on the losing side.