If we were talking about the Sevilla we saw a few weeks ago I could surely say Juventus can win the game especially if you consider the performance of Juventus a few weeks ago but since recently Juventus is not performing well and Sevilla got a better situation after they beat Manchester United I think there is a higher chance for Sevilla in this game.
Sometimes it just doesn't make sense to compare league games to the Europa league. Just consider Sevilla, who is currently playing in the semifinals of the Europa League but is still not among the top 5 teams in their league. Although Juventus is a bigger team with more successful results, could Juventus benefit from that in the semifinals? Or could Sevilla win this game despite not yet being at Juventu’s level despite having a ton of success in the Europa League? The side that can seize control of the game and eventually make it to the finals will have the final say in the matter.