West Ham fullback Ryan Fredericks has suffered ligament damage to his shoulder.
Fredericks is facing a spell on the sidelines after sustaining ligament damage to his right shoulder at Manchester City on Wednesday night.
The 27-year-old collided with City midfielder Rodri in the second half at The Etihad and left the stadium with his arm in a sling.
He will now see a specialist before a call is made on the right way for the injury to be treated.
"The 27-year-old defender damaged ligaments in his right shoulder following a challenge with City midfielder Rodri which forced him off early in the second half.
"Fredericks is now awaiting further consultation with specialists to decide on the appropriate course of treatment, and the Club will keep supporters updated on his progress."