The 19-year-old rising star joined Turkish giant Fenerbache from Iranian club Esteghlal in July on a five-year deal.
Sayyadmanesh has penned a one-year loan deal with İstanbulspor on Monday.
İstanbulspor are a Turkish football and sports club founded by Istanbul High School students in 1926. In 2004–05 they were relegated from the Turkish Süper Lig to TFF 1.
- source : Tehran times