Polish Szymon Marciniak will referee the Champions League pre-quarterfinal between Barcelona and Paris Saint-Germain at the Parc des Princes here on Tuesday.
The Brazilian had missed last Friday's league win at Bordeaux with muscular problems and has not recovered in time to face the Catalan giants.
Emery will be unable to utilise veteran midfielder Thiago Motta, another ex-Barcelona player, due to suspension.
"He's one of the pillars of their defence", Barcelona coach Luis Enrique said of Silva.
"I can't imagine any manager has played Barca as many times as Unai", Enruque said on Monday.
PSG correspondent Jonathan Johnson updates on the mood in the PSG camp ahead of their Champions League clash with Barcelona. This time a year ago PSG thought they had established themselves as bona fide European giants by beating Chelsea home and away but criticism and mockery for the oil-powered club returned with a vengeance when they flopped in the next round against Manchester City.
Barcelona are still fighting on three fronts, keeping alive the prospect of another La Liga, Copa del Rey and Champions League treble to match those achieved in 2009 and 2015. You don't have to change because you are going to play against a particular team. "I'm sure it will be a very interesting game".
"Compared to previous seasons, PSG are more orderly around the ball, more structured". The Spaniard replaced Laurent Blanc over the summer after guiding Sevilla to three straight Europa League titles, and Luis Enrique rates him as "one of the best coaches" he has faced.
"I think we are also very strong - for four or five years now we have been gaining respect on the European scene". He knows to perfection what we will do and that is an added danger.
Whichever way you ultimately decide to enjoy the game with BT Sport, it's fair to say that PSG v Barcelona falls into the "unmissable" category. The Italian global spoke about Barcelona's attacking potency and how to deal with the MSN: "All three of them are in the top five forwards in the world", he said. The club has long wanted ties of such glamour and significance as a regular feature of their fixture lists and Emery believes his side are now capable of winning them. "We will play to our strengths and not try to imitate Atletico (Madrid), for example".
Edinson Cavani: Cavani is the focal point of PSG's attack and is their main source of goals, netting 31 times this season.
"Zlatan [Ibrahimovic] has gone, but Cavani is scoring a lot of goals".
Luis Enrique points to the unselfish Cavani's excellent work ethic as a rare quality for such a prolific forward.