The 26-year-old England skipper may face a lengthy lay-off.
Chelsea manager Avram Grant said: “He didn’t complain about it at half-time and he wanted to continue but we didn’t want to take a risk.
“For me if it is something with the head, you don’t have to take a risk.
“I didn’t see the challenge so well. The players mentioned it and said it was an elbow.”
