Juventus will indeed have a really tough work to do in the second leg. Because Sporting's performance was really impressive in Turin already and this could be a sign of another solid effort in Portugal this time. Sporting are very likely to miss their chance for a Champions League spot in their domestic league now. They seem focused on the Europa League more than the Liga Portugal.
Winning the Europa League title isn't an easy task at all but it looks like they will still try their luck with that. Honestly their performance until this round has been impressive. Therefore Juventus had better be well-prepared for facing a tough opponent once again.
The semifinal form must be :
As roma
Leverkusen
Sevilla
And juventus
But things looks like in unexpected way. So it might be between feyenoord , leverkusen , manchester united and juventus , sepite sporting cp doing well away and then will play at home in the second leg , i still think juventus can handle it, as roma might be the one i doubt can get through.