There is a hidden Atletico Madrid desire for a miracle at Stamford Bridge, with one London shop window containing the four shirts of the teams in Group C and, importantly, putting Atletico Madrid's in second place.
The shop is named Milagros - Miracles, in English - but Diego Simeone and co. will need two of them on Tuesday night.
The first is in their hands, while the second is dependent on Qarabag.
Atletico have to do their job against Chelsea and will hope for a repeat of the result they got in their last visit to Chelsea, when they won 3-1 in the semi-finals of the 2013/14 competition.
If they get the three points, they'll hope for Roma to have dropped points to Qarabag and it's worth remembering that the Azerbaijan side have already come away with a point on the road, precisely against Atletico at the Estadio Wanda Metropolitano.
Qarabag themselves have nothing to play for in Rome, but pride will be at stake for both them and the reigning Premier League champions.
The moment in which Atleti dare to dream comes during their best form of their season, with heart and courage on show.
Chelsea are, though, the only team to have made them look vulnerable, but confidence has built in the Atleti dressing room and Simeone's men are ready to go.
That confidence has been boosted even further by the form of Antoine Griezmann, one of the best strikers in the continent.
He suffered a dip in form early this season, but is now more relaxed knowing that the ball will go in.
The Frenchman is accompanied by the man Simeone believes to be his best partner, Kevin Gameiro, while behind them they have players like Koke, whose absence in both games against Qarabag was a key factor.
In defence, Jose Gimenez could move into the centre from the right and Jan Oblak will be his usual wall at the back.
Don't forget. Miracles do happen.