This report is according to the Metro, which claims Arsenal have reportedly suffered a massive blow as January target is close to signing for the Hammers.
The Reports also claims Slaven Billic is interested in reunite with the 23-year-old Oğuzhan Özyakup who he has worked with during his two-year stay in Besiktas.
The Gunners will have to face heavy completion from Atletico Madrid, Inter Milan Newcastle, Valencia and West Ham for the fast rising star that has caught the eyes of many.
However, they report claims the Hammer are sitting in pole position for his signature and they are set to sign him in January.
The Turkish International has scored 11 goals in 85 games of Besiktas since joining them in the summer of 2012.
Arsene Wenger hopes to reunite with the star who left the Gunners without playing a single game for them.