Seahawks sign Mike Williams, fullback Ryan Powdrell

The Seahawks have signed Mike Williams and fullback Ryan Powdrell, two of the 17 players who were on tryouts this week. The signings were reported on the league's official Web site.Williams was the No. 10 overall pick in the 2005, chosen by Detroit. He has struggled at times with his weight, but came in to the tryout in great shape. He is 6 feet 5, 235 pounds and fits the mold of the big, physical receiver.Powdrell comes at a position that's thin. Owen schmitt is the only other fullback on the roster.