Former Indianapolis Colts safety Bob Sanders plans to sign a one-year deal with the San Diego Chargers Thursday night, a league source told ESPN NFL Insider Adam Schefter.

Sanders also visited the New York Jets, Jacksonville Jaguars and Buffalo Bills this offseason, according to sources.

Since signing a five-year, $37.5 million deal after being named the defensive player of the year in 2007, the oft-injured Sanders played in only nine regular-season games for the Colts.