Who are the clubs well-placed to progress as crunch time arrives in the Champions League last 16? And who has it all to do?
Three of England's four clubs head into the second leg with a deficit to turn around - with only Manchester City enjoying a lead.
To assess the percentage chance of each side reaching the quarter-finals, sports data analysts Gracenote have used their Euro Club Index. - feeding the results to us at BBC Sport.
And BBC Radio 5 Live's European football experts discuss how they see each Premier League team's prospects.
