The 38-year-old posted a link to an article which appears to claim that the much-anticipated fight will take place at the Vodafone Arena - home of Turkish football club Besiktas.
The pair are due to fight this year, with Pulev the mandatory challenger for Joshua's IBF heavyweight title.
But SunSport understands that while talks are ongoing, any clash between the pair will only take place in either the United Kingdom, United States or Saudi Arabia.
No word though has come from Joshua's camp today regarding the fight