Guardiola this week said he would not pick midfielder Yaya Toure again unless he received an apology from Seluk for comments he made in the media.
The Ukrainian told the BBC's World Football Podcast: "Pep Guardiola - he thinks only about himself. He thinks he is already God.
"For me, very strange things (have happened) in Manchester City because Yaya played with them many years, (Joe) Hart played with them many years, I don't know, (Vincent) Kompany played many years, and (in) comes a new coach and says, 'Okay, these players out like dogs'."
Seluk says Guardiola has no right to tell him what he can and cannot say.
He said: "Everybody can speak what they want. We are in an open country.
"I was born in Russia, there was Communist party. I know when it is not possible to say anything, but I am sorry, I am now in Europe, in England. Guardiola, if he wants to live in a country where it is not possible to say anything, he must change country."