Champions League 2018/19 - Referee Appointments - Matchday 6 (I)

The following officials will be in charge of Tuesday's Champions League MD6 games.  Thanks to H_demboveac on twitter for the appointments. 

Group D

11 December 2018, 18:55 CET - Istanbul (Ali Sami Yen Spor Kompleksi – Türk Telekom Stadyumu)
Galatasaray (TUR) - FC Porto (POR)
Referee: Aliaksiej Kuĺbakoŭ (BLR)
Assistant Referee 1: Dzmitryj Žuk (BLR)
Assistant Referee 2: Alieh Maslianka (BLR)
Fourth Official: Juryj Chomčanka (BLR)
Additional Assistant Referee 1: Dzianis Ščarbakoŭ (BLR)
Additional Assistant Referee 2: Dzmitryj Dzmitryjeŭ (BLR)
UEFA Referee Observer: Patrick Kelly (IRL)
UEFA Delegate: Luis Cuervas del Real (ESP)

Group D
11 December 2018, 18:55 CET - Gelsenkirchen (VELTINS-Arena)
FC Schalke 04 (GER) - FC Lokomotiv Moskva (RUS)
Referee: Anastásios Sidirópoulos (GRE)
Assistant Referee 1: Polychrónis Kostarás (GRE)
Assistant Referee 2: Lázaros Dimitriádis (GRE)
Fourth Official: Damianós Efthymiádis (GRE)
Additional Assistant Referee 1: Anastásios Papapétrou (GRE)
Additional Assistant Referee 2: Ioánnis Papadópoulos (GRE)
UEFA Referee Observer: Alain Hamer (LUX)
UEFA Delegate: Jan Damgaard (DEN)

Group A
11 December 2018, 21:00 CET - Bruges (Jan Breydelstadion)
Club Brugge (BEL) - Club Atlético de Madrid (ESP)
Referee: Davide Massa (ITA)
Assistant Referee 1: Filippo Meli (ITA)
Assistant Referee 2: Fabiano Preti (ITA)
Fourth Official: Stefano Alassio (ITA)
Additional Assistant Referee 1: Paolo Valeri (ITA)
Additional Assistant Referee 2: Marco Di Bello (ITA)
UEFA Referee Observer: Bertrand Layec (FRA)
UEFA Delegate: Vladislav Khodeyev (RUS)

Group A
11 December 2018, 21:00 CET - Monaco (Stade Louis II)
AS Monaco FC (FRA) - Borussia Dortmund (GER)
Referee: Craig Pawson (ENG)
Assistant Referee 1: Lee Betts (ENG)
Assistant Referee 2: Ian Hussin (ENG)
Fourth Official: Constantine Hatzidakis (ENG)
Additional Assistant Referee 1: Paul Tierney (ENG)
Additional Assistant Referee 2: Christopher Kavanagh (ENG)
UEFA Referee Observer: Kóstas Kapitanís (CYP)
UEFA Delegate: Duško Grabovac (CRO)

Group B
11 December 2018, 21:00 CET - Barcelona (Camp Nou)
FC Barcelona (ESP) - Tottenham Hotspur FC (ENG)
Referee: Milorad Mažić (SRB)
Assistant Referee 1: Milovan Ristić (SRB)
Assistant Referee 2: Dalibor Đurđević (SRB)
Fourth Official: Nemanja Petrović (SRB)
Additional Assistant Referee 1: Nenad Đokić (SRB)
Additional Assistant Referee 2: Danilo Grujić (SRB)
UEFA Referee Observer: Nikolay Levnikov (RUS)
UEFA Delegate: Pavel Kolev (BUL)

Group B
11 December 2018, 21:00 CET - Milan (Stadio Giuseppe Meazza)
FC Internazionale Milano (ITA) - PSV Eindhoven (NED)
Referee: Felix Zwayer (GER)
Assistant Referee 1: Thorsten Schiffner (GER)
Assistant Referee 2: Marco Achmüller (GER)
Fourth Official: Eduard Beitinger (GER)
Additional Assistant Referee 1: Daniel Siebert (GER)
Additional Assistant Referee 2: Sascha Stegemann (GER)
UEFA Referee Observer: Alexandru Deaconu (ROU)
UEFA Delegate: Campbell Ogilvie (SCO)

Group C
11 December 2018, 21:00 CET - Liverpool (Anfield)
Liverpool FC (ENG) - SSC Napoli (ITA)
Referee: Damir Skomina (SVN)
Assistant Referee 1: Jure Praprotnik (SVN)
Assistant Referee 2: Robert Vukan (SVN)
Fourth Official: Tomaž Klančnik (SVN)
Additional Assistant Referee 1: Slavko Vinčič (SVN)
Additional Assistant Referee 2: Matej Jug (SVN)
UEFA Referee Observer: Hugh Dallas (SCO)
UEFA Delegate: Jean-François Crucke (BEL)

Group C
11 December 2018, 21:00 CET - Belgrade (Stadion Rajko Mitić)
FK Crvena zvezda (SRB) - Paris Saint-Germain (FRA)
Referee: William Collum (SCO)
Assistant Referee 1: David McGeachie (SCO)
Assistant Referee 2: Graeme Stewart (SCO)
Fourth Official: Alan Mulvanny (SCO)
Additional Assistant Referee 1: Kevin Clancy (SCO)
Additional Assistant Referee 2: Nicolas Walsh (SCO)
UEFA Referee Observer: Juan Antonio Fernández Marín (ESP)
UEFA Delegate: Jozef Kliment (SVK)