Running back Tra Carson was placed on injured reserve (hamstring) Saturday by the Detroit Lions, who promoted running back Paul Perkins to the active roster from the practice squad.
Perkins, 24, acquired by Detroit through waivers from the New York Giants on Sept. 18, has played in two games for the 3-3-1 Lions this season. The 5-foot-11, 208-pound Perkins, in his third NFL season out of UCLA, has three carries for 4 yards.
In two previous seasons with the Giants, he gained 546 yards on 153 carries in 25 games, and made 23 receptions for 208 yards.