Scottish official Mike Adamson has been appointed as referee for the European Challenge Cup quarter-final between Leicester Tigers and Castres Olympique.
Tigers host their French visitors on Sunday, September (3.00pm) in the last eight of the tournament. A semi-final against Toulon or the Scarlets is the prize for the winners.
Former Scotland Sevens international Adamson will be assisted by Gallagher Premiership officials Craig Maxwell-Keys and Adam Leal.
The television match official is Graham Hughes and the citing officer is Italian official Francesco Grillo.