TNAwrestling.com is reporting that Scott Steiner underwent surgery in Birmingham, Alabama on Tuesday afternoon to repair a fully-torn ACL in his knee. The surgery was performed by Dr. James Andrews. Steiner was injured in the main event match at Sacrifice against Samoa Joe and Kaz. After the event Steiner had an MRI done, but the test was incomplete due to the amount of swelling. Steiner worked through the pain, and was to have a scope done on his knee Tuesday, when the ACL tear was discovered. According to Dr. Andrews, Steiner could be out anywhere from four to six months.