Arsenal have been handed a tough assignment in the quarter-finals of the Europa League after being drawn against Napoli, while Chelsea will face Slavia Prague.
In the other two ties, there is an all-Spanish tie featuring Villareal taking on Valencia, while three-time runners-up Benfica will take on Eintracht Frankfurt.
The first legs of the ties will take place on April 11, with the return legs seven days later on April 18.
As Arsenal and Chelsea were both drawn to play at home in their second legs, UEFA regulations mean Arsenal’s tie with Napoli will now be reversed, with the Gunners hosting the Italian side in the first leg instead.
Arsenal will face Villarreal or Valencia in the semi-finals if they beat Napoli. Chelsea’s semi-final opponents will be Eintracht Frankfurt or Benfica should they get past Slavia Prague.
Europa League quarter-final draw
Napoli vs Arsenal
Villareal v Valencia
Benfica v Eintracht Frankfurt
Slavia Prague v Chelsea
Europa League semi-final draw
Winners of Napoli v Arsenal will play winners of Villareal v Valencia.
Winners of Benfica v Eintracht Frankfurt will play winners of Slavia Prague v Chelsea.