While Atalanta is the key here, they probably fight for Coppa against us (full strength) and play their youngsters against Milan (high probability they will lose to Milan)
No matter if most of Italy wants us out of top 4; no matter if the Atalanta players and staff prefer Milan in top 4 (I don't think they care, though), Atalanta are a CL regular now and their match vs Milan is very important to just lose it like that. All eyes will be on them.
I also think that finishing 2nd is more important to them than caring about who will finish 5th and who makes it to CL.
So, if Atalanta are given a choice: "to beat Milan or not?", they will want a victory. But will they have the strength and motivation to get that victory is the main question here. There is a high probability that after the Coppa final and after securing the top 4 this weekend, they won't be close to 100% both motivation-wise and in physical terms.
