NaVorro Bowman

In this Monday, Nov. 19, 2012, file photo, San Francisco 49ers linebacker NaVorro Bowman celebrates after a tackle against the Chicago Bears during an NFL football game in San Francisco. The 49ers and Bowman have reached agreement on a five-year contract extension through the 2018 season. The contract is worth $45.25 million, with $25.5 million in guaranteed money, a person with knowledge of the details said. The person spoke to The Associated Press on condition of anonymity because terms weren’t released. (AP Photo/Marcio Jose Sanchez, File) With Bowman’s new deal, it keeps one of the best and most-feared linebacking tandems in the NFL together for the long haul — as fellow inside linebacker Patrick Willis is signed through 2016. (AP Photo/Marcio Jose Sanchez)