This game will be much more than a Copa final. Clasico, treble chances, fuck up Madrid's season which their fans prophesied last summer will be invincible with Mbappe.
And last but not least, this game can be a huge mental boost or a down for the CL semis against Inter 3 days later.
The team will be physically tired against Inter on Wednesday regardless the result, so they need to be mentally in top form. On adrenaline, even a tired body can run more than a rested one.
Flick's job is now to win the next two LL games against Celta and Mallorca, while keep the team fresh for the 2 season deciding games.