Five Aston Villa players could miss the UEFA Conference League semi-final should Unai Emery’s side progress against Lille on Thursday. The Villans travel to northern France holding a slender 2-1 lead after last week’s first leg in the West Midlands. Emery will be boosted by the return of Douglas Luiz after the Brazilian missed Sunday’s 2-0 win over Arsenal at The Emirates. READ MORE: Full matchday guide for Thursday’s Conference League clash against LilleThe 25-year-old is one of five players running the suspension tightrope should the Villans progress on Thursday. Five Aston Villa players now…