Benfica will also be without head coach Jose Mourinho, who is suspended after receiving a red card in the first leg.
Bilbao condemn fans behaviour in Europa League match at Roma
Arnautovic, who has Serbian background, apologised on Monday for his reaction towards North Macedonia fans
UEFA rejected financially troubled Real Mallorca's appeal against their exclusion from this season's European competition.
Porto have been excluded from next season's Champions League by European soccer's governing body UEFA over the alleged bribery of referees in the 2003-04 season, the Portuguese club said in a statement on Wednesday. Porto said it would try to overturn the decision through the UEFA appeals body. The club gave no further details and its officials were not immediately available to comment.
French side Lille will appeal against Ryan Giggs's goal in Manchester United's 1-0 Champions League win.
Real, Barca and Juve stand firm on Super League