UEFA Europe League quarter-finals second leg matches will make known semi-finalists.

Chelsea-Slavia Prague is one of today's matches. Chelsea manager Maurizio Sarri says that Slavia is very dangerous club in away matches. 

Zdeněk Houštecký, Slavia assistant coach: "We fly with hope, we want to advance. We'll do our best for it. I'm sure we're not giving up. We will play actively and believe that it will work. Certainly Chelsea are beatable, so we believe it. Tomáš Souček is our octopus in the middle."

English club has 1 win and 2 draws against the Czech clubs. Head referee is Damir Skomina from Slovenia. 

Benfica hold its 4-2 advantage from the first leg. Frankfurt coach notices that we have still every chance.

Adi Hütter, Frankfurt coach: "Benfica are a top team away from home as well. We need to concentrate and let our quality show. With the fans behind us, we've got what it takes to reach the next round. I'm sure we'll be carried by the crowd tomorrow. When we walk up the steps and feel the atmosphere, it'll be an incredible feeling. That electrifies us."

Referees will be from Italy, head referee is Daniele Orsato. 

The principal match will be held in Neapol between Napoli and Arsenal. Ancelotti spoke positively about match. He understands that it will be difficult, but it is not impossible. 

Arsenal coach Unai Emery: "It's one football match and I think we are two teams with players with experience. We have a big history and also they have a very good coach. Our mentality is to think about preparing the match, starting the game by attacking when we have the ball and have the space to run. We want to defend as well. Our first target is to win."

Carlo Ancelotti, Napoli coach: "Three things we need to get to the semi-final? Courage, intelligence and heart. Napoli will put in a great display tomorrow - I believe we can do it. The crowd at the San Paolo will be a boost for us if we can put in a top display."

Napoli is more stronger than England teams at home match. Head referee is Ovidiu Haţegan (ROU). 

Camp de Mestalia-Valencia become witness to next Valencia-Villareal match. Yellow submarines wants to revenge of home defeat from Valencia. 

'Bats' coach Marcelino: "We have the tie in our favour with a very good result, which we would all have taken if it had been offered to us beforehand. However, the difference between having the result in our favour and having the tie sewn up is that there are 90 minutes to go. We can't get overconfident. In any situation in which the opposition go ahead, doubts can creep into your mind. We have to avoid that by giving the game our full attention."

Head referee is William Collum, Scotland. 

Final match will be taken place at Baku Olympic Stadium. 

Camp de Mestalla - Valencia

Camp de Mestalla - ValenciaCamp de Mestalla - Valencia