A Champions League triumph looked a long way off for Chelsea in February 2012 after they lost their second round first leg tie 3-1 to Napoli.
Doing poorly in the league and facing a premature exit, Andre Villas-Boas was given his marching orders barely six months after taking charge.
His right-hand man Roberto Di Matteo took the reigns and inspired an epic comeback at Stamford Bridge.
Chelsea won 4-1 with a Branislav Ivanovic header winning it in extra-time for the Blues.
Chelsea fans won't need reminding of what happened next but they surely won't mind reading it again.
Having qualified for the quarter-finals, a famous run started which saw them knock out Benfica and Barcelona before edging the final against Bayern Munich on penalties.
History was made.