The Chicago Bears plan to work out former Green Bay Packers running back Ryan Grant on Tuesday at Halas Hall, according to a league source.

It's unknown whether the team's interest in Grant is a sign the team is concerned that starting running back Matt Forte's injury will linger. Bears coach Lovie Smith acknowledged that backup Michael Bush took some big hits filling in for Forte on Sunday in the club's 23-6 win over the St. Louis Rams, but it's not clear whether the team's interest in Grant is the result of that.

"We have a lot of guys who got banged up from the physical play of the game," Smith said Monday. "Mike took some good shots and came out of the game for a play after a hard hit. But it was that type of game."

A former standout at Notre Dame who spent five years with the Packers, Grant averaged 5.4 yards per carry in two games last season against the Bears. He's rushed for 4,016 yards and 25 touchdowns on 924 career carries.

Grant, who will turn 30 in December, visited the Detroit Lions last week and put forth an impressive workout, according to the source, who said at least one other team is currently interested in Grant. The source said Grant has fielded multiple offers but hasn't yet encountered a situation that appeals economically.

In eight games against the Bears, Grant has rushed for 640 yards and five touchdowns, averaging 5.12 yards per attempt. He's put together three 100-yard outings against the Bears, rushing for 145 yards and a TD in a 2008 matchup, and 137 yards and two TDs on Dec. 13, 2009.