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.

Aston Villa take on Celtic at Villa Park in the final round of fixtures in the Champions League ’s initial league phase, with an automatic qualification place potentially on the line. Unai Emery ’s side sit in ninth at the start of the day and just one point behind Bayer Leverkusen, who occupy the final automatic qualification spot.