Batch broke a collarbone in Friday's preseason opener, leaving the Steelers without a veteran behind starter Ben Roethlisberger. With Dennis Dixon and Mike Potts on the depth chart, Steelers officials decided to try the two experienced quarterbacks in what could be an open audition for backup.
Leftwich, 28, was a long-time starter for the Jacksonville Jaguars. He spent last season with the Atlanta Falcons, appearing in three games. He has proved himself as a backup but is dogged by injuries.
It's the first opportunity for both players this preseason.
Batch figures to miss at least a month while his collarbone mends. That means Leftwich and/or Culpepper are likely to be with the Steelers once the season starter. Their first regular-season game is Sept. 7 against the Houston Texans. They have three exhibitions left, including Thursday at Buffalo.