Seahawks' D is dealing with uncertainty

The best defense in football has some concerns as training camp approaches. In addition to negotiating a contract with Bobby Wagner, the Seahawks face questions about when Earl Thomas -- the best safety in the league -- will be able to return to the field following the shoulder surgery he endured after the Super Bowl.

Thomas told ESPN he has come a long way in his recovery but knows he won't be ready for training camp and admits even the first week of the regular season is a question mark.

Thomas has been engaged in a rehab program he describes as mentally challenging and told ESPN that the Super Bowl was the first time he ever felt physically limited by an injury.

"I'm unsure about everything at this point," he said. "I will find out more when I get back to Seattle on [July] 30th when I take my physical."

Cornerback Richard Sherman played with a serious elbow injury in the Super Bowl but avoided surgery. He has been medically cleared but has some anxiety as well, telling ESPN, "Obviously haven't had to stop anyone or be violent, so we will see how it handles in training camp."