Juventus lately in Serie A their performance has been relatively unstable, therefore I think they will have difficulties when they face Sevilla. Sevilla was surprisingly able to beat Manchester United in the previous round which made them even more confident when they faced Juventus.
It was surprising just how Sevilla could have managed it to qualify and they did it with very little difficulty. Coming to the Old Trafford and get a draw from a 2 goals down losing position, that wasn't what any one would have expected and not against an inform Manchester United but Sevilla did and they had an even mor3 better game when Manchester United visited Spain for there return leg.
Sevilla against a not so stable Juventus, I dint know what to expect for sure but, Juventus aren't that bad from there yesterday's performance against Napoli in there local league. They had 2 of there goals cancelled and with the progress shown, Sevilla would be in for some interesting game non the less.