Gregory van der Wiel and Emmanuel Emenike were not considered up to scratch by the Sunderland boss.
Former West Ham loanee has a better strike rate than any of their current strikers.
The Nigerian now wants to force his way back into the first-team picture at Fenerbahce.
The Nigerian scored just two goals during his loan stint at West Ham.
The loanees are both set to leave the club at the end of the season.
The Fenerbahce owned striker has not been a regular goalscorer in London.
West Ham United and Leicester City went head-to-head this weekend.
Alex Song, Victor Moses and Emmanuel Emenike are on loan at West Ham United from Barcelona, Chelsea and Fenerbahce respectively.
West Ham reportedly won't sign the on-loan duo or one of their current strikers on permanent deals.
West Ham have reportedly made a definitive decision on three of their on-loan players.