Sparta Prague is now on 1st place in Group I in Europa league. In first game they lost against Napoli with result 3-1, and I expect and today to see similar game with many goals. Sparta Prague this season in Europa League played 3 games with over 3.5 goals.
Napoli is 2nd place in Group I. I think that they are better in all performances than Sparta Prague. NApoli have great players: Insigne, Inler, Zapata, Martens, Higuain, and other great names. If they won in first game with 3-1, I don't see problems to score couple of goals in away game.