The away goals rule has been the source of endless thrills throughout the Champions League era, resulting in either tears or utter jubilation across the continent.
Barcelona have been involved in the most famous instances of recent memory. Defeating PSG 6-5 on aggregate in 2017 tops the list, following a 4-0 first-leg away loss, seemingly out of the competition, Neymar's poetic performance against his future employers inspired an injury-time winner at Camp Nou.
Then, a year later, taking a 4-1 lead to the Italian capital, the Catalan club were unable to prevent Roma 'rising from their ruins,' as the 'Greek god,' Kostas Manolas, sent the underdogs through to the semi-finals when tying the aggregate scoreline at 4-4.
