The Vikings will be adding depth at defensive tackle this week.
General manager Rick Spielman announced Tuesday that Pat Williams will sign a one-day contract and retire as a member of the Vikings.
"I know he's going to be involved with our draft party down there, and we'll sign him to a contract on Thursday," Spielman told FOX Sports North. "Unfortunately, we're going to have to release him on Friday."
Spielman went on to praise Williams, saying he is one of the "great all-time leaders and all-time players" for the Vikings.