Smith, 24, was a third-round pick by the Lions back in 2008 out of the University of Central Florida. Smith rushed for 976 yards and scored eight touchdowns during his rookie season in 2008. Since then, Smith has had to deal with a knee injury that kept him out all of 2009 and most of 2010. Smith's was finally relieved of his starting running back duties with the emergence of then rookie running back Jahvid Best last season.
If signed, Smith would join a very crowded Patriots backfield. Currently, the Patriots have likely four running backs in BenJarvus Green-Ellis, Danny Woodhead and rookie Shane Vereen and Stephen Ridley who will likely make the team. Smith joins former Washington Redskins running back Clinton Portis as running backs the Patriots have worked out.