The person spoke to The Associated Press on Wednesday on condition of anonymity because the team had yet to announce the move. McClain is expected to provide a short-yardage and blocking option to go with a group of speedy running backs that includes Thomas Jones and Jamaal Charles.
McClain is a former fourth-round draft pick who spent four seasons with the Baltimore Ravens. The two-time Pro Bowl selection was voted first-team All-Pro after running for 902 yards and 10 touchdowns in 2008.
The 260-pound fullback’s work load had dwindled the past two years. He ran for just 180 yards in 2009 before carrying 28 times for 85 yards last season.