The Slovenian Matej Jug has been appointed to referee Galatasary-Lazio, match of the first round of the Europa League, scheduled for Thursday 16 at 18:45.
His compatriots Matej Žunič and Manuel Vidali assisted him on the pitch.
Leicester-Napoli on the same day (9pm), will be directed by Portuguese Tiago Martins (linesman Luis Campos and Bruno Alves Jesus).
Roma takes the field in the Conference League and receives CSKA from Sofia (9 pm).
The Swede Glenn Nyberg (assistants Mahbod Beigi and Andreas Söderqvist) was chosen to referee the match.