LATROBE, Pa. - The Pittsburgh Steelers made a roster move today when they released free agent rookie wide receiver Chris Jackson. Jackson (6-2, 205), who was signed this past April as an undrafted rookie, played at Millsaps College in Jackson, Miss.

The Steelers replaced Jackson on their roster by re-signing first-year wide receiver Gerran Walker. Walker (5-10, 185), originally signed with the Steelers on Jan. 19, but was released July 19. He began his professional career in 2006 with the Indianapolis Colts as an undrafted rookie free agent out of Lehigh, but was released prior to the start of training camp.