Ottawa Senators defenseman Wade Redden sprained his left knee during a Wednesday morning practice and will be sidelined for at least a week. Redden has tallied 21 points, which leads team defensemen, and ranks second on the club in the plus-minus rating at plus-19 after 19 games this season. Redden will miss at least four games, including a November 29 meeting with the Montreal Canadiens and a home-and-home set with the Boston Bruins.