Batch, 37, has thrown just two passes in a game this season and has appeared in seven games -- two starts -- over the last three seasons.
Roethlisberger has been hampered since sustaining a high ankle strain Dec. 8. He played Monday, throwing three interceptions in a 20-3 loss at San Francisco.
However, the Steelers have already locked up a playoff spot, giving Steelers Coach Mike Tomlin the opportunity to rest Roethlisberger when the 2-12 St. Louis Rams play at Pittsburgh Saturday.
Pittsburgh and Baltimore are tied at 10-4 for the lead in the AFC North.
|Additional Sports News Stories|
WASHINGTON, May 17 (UPI) --James Taylor will headline a concert at the White House next week, when the Library of Congress honors Carole King with the Gershwin Prize for Popular Song.
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