Atari Bigby joins the Chargers on a two-year, $2.5 million deal, per a league source. He can make up to $4.5 million

— Aaron Wilson (@RavensInsider) March 17, 2012

The Seahawks signed safety Atari Bigby to a one-year contract in training camp last year. He is leaving for San Diego after agreeing to terms on a two-year deal, according to Aaron Wilson, who is an NFL personnel bloodhound employed by the Carroll County Times among others.

Bigby had previously played for the Green Bay Packers.

Bigby was Seattle's No. 3 safety, and special-teams mainstay in 2011. He appeared in 15 games for Seattle.