We have an official whistle blower to take care of Wednesday's gigantic match.
UEFA announced the referee assignments for Matchweek 3 of the Champions League group stage, and Milorad Mazic from Serbia has been appointed as match official for the game between Barcelona and Manchester City at Camp Nou. This will be Mazic's third Champions League assignment this season (Rostov 4-1 Ajax, Benfica 1-1 Besiktas).
While he's not one of the most famous referees, Mazic is one of the top officials in the game. He's fair, doesn't like to shine and isn't fond of too many bookings (4.