Browns coach Pat Shurmur announced today that the surgery was successful, and that Steinbach was out for the season.
The Browns could promote rookie guard Jason Pinkston, a former Pitt lineman.
They also claimed former Baltimore Ravens offensive lineman Oniel Cousins off waivers Monday, taking on his $1.2 million one-year restricted tender.
For more coverage of the Browns go to the Orange & Brown Report at cle.scout.com
Eric Steinbach heading to IR with back injury
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