Pepe was adamant City were favoured on the night.
The defender said, "Completely unfair, completely unfair. Manchester City have very good players, they didn't need that much help.
"But, bad decisions ... This way costs even more. Today, with the technology we have, that UEFA has ... the VAR, not having caught the referee's attention, I think is unacceptable.
"There is the penalty on me, I think it was (Joao) Cancelo. There is also the second yellow that should have been shown Rodri..."