Ghanaian winger Andre Ayew could return to action before December this year according to West Ham team doctor.
The Hammers record signing Andre Ayew will not undergo surgery on the thigh injury he on his debut against Chelsea.
Manager Slaven Bilic admitted last week that the Ghana international could be out for up to four months if surgery was required.
But the club's head of medical and sports science Stijn Vandenbroucke has confirmed Ayew will not require an operation and has already started his rehabilitation programme.
"Andre Ayew suffered a rare but very serious thigh injury at Chelsea, which will take time to recover from," he told the club's official website.
"Andre will not have surgery and we have started the rehab straight away, working two times a day".
"Andre is a highly professional athlete with a positive attitude that no doubt will affect the return to play date"
"It is early to put a time-line on the rehab, but we are positive to reintroduce him in December."