Pro Football Weekly hears that one undrafted Packers rookie who figures to have a good shot at making the final roster is CB Sam Shields, a University of Miami (Fla.) product with more speed than anybody currently on the roster. Shields, who ran two 40-yard dashes in 4.30 and 4.33 seconds on grass surfaces at his pro day in Coral Gables, Fla., excelled in kick-return coverage at "the U," an area in which the Packers could use a major boost. Source: Pro Football Weekly