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The Seahawks placed Jimmy Graham on the physically unable to perform list at the start of training camp as he continues to make his way back from a torn patellar tendon and now they’ve lost another tight end to injury.

Cooper Helfet has a cracked bone in his foot in the first practice of camp. Helfet was out of work on Sunday and offensive coordinator Darrell Bevell said, via Curtis Crabtree of PFT and 950 KJR in Seattle, that the team will be missing him for “a little bit.”

With two players out of comission, the Seahawks added a tight end to the roster by signing Clayton Echard. Wide receiver Tyler Slavin was waived/injured to open the roster spot.

The Seahawks have Luke Willson healthy and third-round pick Nick Vannett will likely get increased chances to show he can handle a spot in the offense early in his career while more experienced members of the position group are on the mend.