Sevilla were not much impressive before but now they seem solid. Their second leg performance was really incredible. There was a big improvement compared to the first one. They should be able to maintain this level against Juventus as well and this might be enough for them to move on to the finale too.
Based on Sevilla performance in their last match to eliminated Manchester united from UEFA Europa league competition, showed that they will defeat Juventus in the semi-final because they have players who are capable to make things happen for their favour in this match. I think, Juventus are still lacking in the area of midfield because their strikers really lacked ball from midfielders last match that made sporting CP draw the match in the second leg. I know the match will going to be a tough match to the both team in this semi-final, but Sevilla players will definitely create an opportunity to win this match to move to the next level.
even though Juventus have never been able to keep up with Sevilla's game, it seems that Juventus coach Massimiliano Allegri has the desire to bring the Juventus team to win in the semifinal first leg. maybe a little impossible but juventus has a chance.