Listen to Sportsound and follow live text updates of Celtic's final league phase fixture in the Champions League against Aston Villa.

But for every top team underperforming, there's an underdog seizing their moment and taking their place. And during this phase, Aston Villa, Lille, Brest, Celtic and Club Brugge certainly rose to the occasion as they all secured unexpected placings in the next round.

Liverpool, Arsenal and Aston Villa straight through to Champions League last 16; Man City and Celtic face play-off with Pep Guardiola setting up potential return to former club Bayern Munich; play-off