Roma’s Champions League match with CSKA Moscow will be officiated by Greek referee Anastasios Sidiropoulos.
It kicks off on Tuesday at 20.00 UK time (19.00 GMT).
UEFA have assigned Sidiropoulos to the game at the Stadio Olimpico.
His record with Italian sides at club and international level is of three wins, a draw and two losses.
This will be his third game involving CSKA Moscow and the Russians won both the previous encounters.
He’ll be aided by assistants Polychrónis Kostarás and Lázaros Dimitriádis.
The additional assistants on the goal-line are Anastásios Papapétrou and Athanásios Tzílos.
The fourth official is Damianós Efthymiádis.
This is a crunch match, as after two games CSKA Moscow are incredibly top of the group on four points, followed by Roma and Real Madrid on three.