Williams retiring nine games into the season adds to Seattle’s black-hole situation at center the last 10 years.

Seattle Seahawks starting center Connor Williams retired on Friday, according to NFL Network's Ian Rapoport. Williams signed a one-year contract with

Seattle Seahawks center Connor Williams has retired because of personal reasons, coach Mike Macdonald said on Friday. The Seahawks coach said Williams' departure did not have anything to do with the ACL injury he sustained last year that required surgery.