Niners sign LB Costanzo
{{#rendered}} {{/rendered}}Santa Clara, CA (SportsNetwork.com) - The San Francisco 49ers signed linebacker Blake Costanzo to a one-year contract on Tuesday.
Costanzo totaled nine tackles and a forced fumble in 16 games for the Chicago Bears last season, his second with the franchise.
Heading into his eighth pro season out of Lafayette, the 30-year-old New Jersey native has compiled 72 tackles and forced five fumbles for the Bills, Browns, 49ers and Bears since 2007.
{{#rendered}} {{/rendered}}Costanzo participated in all 16 games with San Francisco during the 2011 campaign, racking up 12 tackles.
To make room on the roster, the Niners waived guard Al Netter.