The Seahawks have signed offensive lineman Lemuel Jeanpierre and safety Jeron Johnson to one-year contract extensions, the team announced Friday.

"We are pleased to sign two players that were part of a special championship season," said general manager John Schneider. "Lem has performed well when called upon in starting opportunities and we are excited to have him be a part of our 2014 season going forward, while Jeron brings physicality and toughness that plays a key role in our special teams unit."