SEATTLE – The Seahawks have taken care of one significant piece of their offseason to-do list, agreeing to terms on a four-year, $104.4 million contract extension with left tackle Charles Cross that includes $75 million guaranteed. A source confirmed to the Seattle Times that the deal is expected to be completed. The NFL Network first reported the terms of the deal, which is the largest for a non-quarterback in team history. Cross will get $40.5 million...