Source: Broncos extend LB Haggan

The Denver Broncos signed starting outside linebacker Mario Haggan to a two-year, $3.5 million contract extension that includes $1.25 million in guaranteed money, a league source said Wednesday.

Haggan spent his first five NFL seasons with the Bills before signing with the Broncos in 2008.

Last season he recorded 19 tackles (17 solo) and one sack in his first season in Denver.

He showed enough to Denver's new coaching staff that it wanted to tack two more years onto his deal.

Adam Schefter is ESPN's NFL Insider.