Slaven Bilic hopes club-record signing Andre Ayew will not be out of the side for long after picking up an injury at Chelsea.
Ayew trudged off with a thigh problem little more than half an hour into his Premier League bow for the Hammers, before Chelsea prevailed at Stamford Bridge on Monday night.
Diego Costa’s late winner left boss Bilic frustrated as his West Ham side could not hold on for a point after James Collins’ equaliser, before the former Croatia defender turned his attentions to his squad’s injury issues.
“Ayew has a thigh injury, he told me it’s not a big one but you never know,” said Bilic of the £20.5million signing from Swansea.
“He will have a scan and we have to wait for the result of the scan to know how long he will be out.”
Ayew remains a doubt for Thursday’s Europa League trip to Astra Giurgui in Romania, with fellow summer recruit Sofiane Feghouli still battling a hamstring problem.