One of the other key battles will be for the fifth receiver position. Hines Ward, Santonio Holmes, Nate Washington and likely Limas Sweed have the team made. The fifth and final receiver position is between Willie Reid and Dallas Baker.
Safety -- Veteran Tyrone Carter and rookie Ryan Mundy are battling for one spot. Mundy, who has been out since Aug. 8 with a high ankle sprain, did not play in the past two preseason games and will not play tonight.
Cornerback -- Special teams standout Anthony Madison and undrafted rookie Roy Lewis are vying for one spot. Madison is a special-teams demon while Lewis, who played at the University of Washington, has been impressive in his first camp.
Defensive end -- The Steelers brought in Orpheus Roye to push Ryan McBean, last year's fourth-round pick.
Linebacker -- Third-round pick Bruce Davis, sixth-round pick Mike Humpal and veteran Andre Frazier could be fighting for one spot.
Tight end -- The Steelers have kept three tight ends in the past. Lee Vickers and Dezmond Sherrod could be battling for one spot unless Tomlin uses backup tackle Max Starks as the third tight end.
Offensive line -- If the Steelers keep 10 linemen, fourth-round pick Tony Hills likely will make the team. If not, they'll try to sneak him through to the practice squad.
Punter -- Mitch Berger and Paul Ernster were brought in to replace injured starter Daniel Sepulveda. They will split the punting duties against Carolina. Ernster performed the punting duties in the first and third preseason games, Berger in the second. Ernster averaged 48 yards per punt last week against Minnesota.