If Sampdoria lose tonight then Catania (they play Roma next round) are safe. Also, Parma (they play us next round) and Chievo (they play us tomorrow and Udinese next week) will be safe too (Sampdoria can at max reach them, but on h2h and mini table Sampdoria are worse).
But on the other hand, if Sampdoria win tonight then Parma might need the points against us next week.
What's better?