Monaco lost 2-0 to Paris Saint-Germain on Wednesday night, but it was a very inexperienced, makeshift defence that took the field.
After Laurent Blanc's multi-million pound squad failed to score in the league game last Sunday, they finally found their way past Leonardo Jardim's usually stubborn defence. However, Arsenal fans need to take the result with a pinch of salt, and read very little into it.
The Monaco side that fell to PSG on Wednesday will be nothing like how Les Monegasques line up for the second-leg Champions League tie at the Stade Louis II.
Monaco had to play without any of their recognised centre-backs. Wallace and Aymen Abdennour, heroes at the Emirates, were both suspended. Jardim also had to go without both Andrea Raggi and Ricardo Carvalho through injury. It's unclear whether either will be back for the second-leg, but both suspended players will be available.
This will give Jardim the opportunity to move Jeremy Toulalan into defensive midfield and then he can also play the impressive Fabinho at right-back and not in the midfield.
On Wednesday, Monaco had two 18-year-olds in defence, Almamy Touré, who was excellent against Arsenal, and Abdou Traore, who, in his four league appearances has yet to play 80 minutes in Ligue 1.
Monaco didn't have a particularly great attacking line-up on the pitch either; Dimitar Berbatov started but did little. January signings Alain Traore and Matheus made rare appearances, and Nabil Dirar played on the right-wing.
Jardim will turn to Yannick Ferreira Carrasco, Bernardo Silva and Joao Moutinho to cause the Arsenal defence problems in the second-leg, but they don't have to score against Arsenal. With a much better, experienced defensive unit, they could lose by the same score against Arsenal and still advance to the quarter-finals.
Monaco have now gone 42 months without losing three goals at home, it is going to be a near impossible task for Arsenal to advance.