Warren believes Hamed has thrown his last punch
The 29-year-old has been out of action for 12 months since a lacklustre points win over Manuel Calvo in London last May. Before that he had taken just over another year out to recover from his first professional loss to Marco Antonio Barrera in Las Vegas.
The former IBF, WBC and WBO featherweight champion has repeatedly put on hold a clash with Manchester's Michael Brodie and Warren fears we have seen the last of Hamed.