The 22-year-old defender represented Iran national football team in the 2018 World Cup.
Hosseini had already been linked with a move to Trabzonspor but Esteghlal reportedly convinced the player to stay in the team.
Now, the media reports suggest that Hosseini is in Istanbul to sign a contract with the Turkish football team.
Persepolis free-agent midfielder Vahid Amiri signed a two years contract with Trabzonspor on Saturday.