Seattle Seahawks head coach Pete Carroll has said that Percy Harvin may need surgery after sustaining a hip injury.

The wide receiver, who was acquired from the Minnesota Vikings in a trade earlier this year, was added to the Seahawks' physically unable to perform list earlier this week with a suspected tear in his hip.

Carroll told reporters: "It's in that area, yeah. We're going to take a real good look at it and get second opinions and all that kind of stuff, to do the right thing.

"It's really early in camp, we got plenty of time to get this thing worked out, so we're being very careful. We're going to go ahead and take it step by step. I know he was working full speed just a few days ago.

"But we need to take care of him. We don't know enough information. The number of guys we have on PUP we have to be careful. We have to bring them back in good order and be diligent about the process right now."

NFL.com reports that Harvin will seek further advice from doctors on Tuesday.