West Ham boss Allardyce confirms Benayoun returning to Chelsea
Allardyce intends to replace him with a new face during the January transfer window.
"He's obviously not contributed the level of games that we thought he would do," Allardyce said.
"On that basis he's going to return to Chelsea which frees up an opportunity for us to go out in the market to do a little bit more.
"Had he been involved more and played a bit more than he has we'd have been only too delighted to continue the loan but because of the lack of contribution he's gone back."